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Mirjam M Oosterwerff Departments of Internal Medicine, Epidemiology and Biostatistics, Public and Occupational Health, Endocrine Section

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Rosa Meijnen Departments of Internal Medicine, Epidemiology and Biostatistics, Public and Occupational Health, Endocrine Section

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Natasja M Van Schoor Departments of Internal Medicine, Epidemiology and Biostatistics, Public and Occupational Health, Endocrine Section

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Dirk L Knol Departments of Internal Medicine, Epidemiology and Biostatistics, Public and Occupational Health, Endocrine Section

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Mark H H Kramer Departments of Internal Medicine, Epidemiology and Biostatistics, Public and Occupational Health, Endocrine Section

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Mireille N M Van Poppel Departments of Internal Medicine, Epidemiology and Biostatistics, Public and Occupational Health, Endocrine Section

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Paul Lips Departments of Internal Medicine, Epidemiology and Biostatistics, Public and Occupational Health, Endocrine Section

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E Marelise W Eekhoff Departments of Internal Medicine, Epidemiology and Biostatistics, Public and Occupational Health, Endocrine Section

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consecutive block, participants were allocated in a 1:1 ratio to receive three tablets of vitamin D3 of 400 IU (a total of 1200 IU) or three placebo tablets per day for a period of 4 months. All participants received one tablet of calcium carbonate containing

Article Type:
Research Article
DOI:
https://doi.org/10.1530/EC-14-0096
Volume/Issue:
Volume 3: Issue 4
Open access
Malachi J McKenna Metabolism Laboratory, Department of Endocrinology, School of Medicine and Medical Sciences, St Vincent's University Hospital, Elm Park, Dublin 4, Ireland
Metabolism Laboratory, Department of Endocrinology, School of Medicine and Medical Sciences, St Vincent's University Hospital, Elm Park, Dublin 4, Ireland
Metabolism Laboratory, Department of Endocrinology, School of Medicine and Medical Sciences, St Vincent's University Hospital, Elm Park, Dublin 4, Ireland

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Barbara F Murray Metabolism Laboratory, Department of Endocrinology, School of Medicine and Medical Sciences, St Vincent's University Hospital, Elm Park, Dublin 4, Ireland

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Myra O'Keane Metabolism Laboratory, Department of Endocrinology, School of Medicine and Medical Sciences, St Vincent's University Hospital, Elm Park, Dublin 4, Ireland

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Mark T Kilbane Metabolism Laboratory, Department of Endocrinology, School of Medicine and Medical Sciences, St Vincent's University Hospital, Elm Park, Dublin 4, Ireland

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(18) . Over the past 20 years, supplements combining elemental calcium (500 mg) and vitamin D (10 μg) have become readily available, initially on a prescription-only basis but subsequently on an over-the-counter basis. Most recently, manufacturers of

Article Type:
Research Article
DOI:
https://doi.org/10.1530/EC-15-0037
Volume/Issue:
Volume 4: Issue 3
Open access
Matteo Scopel Medical Clinic III, Department of Medicine (DIMED), University Hospital of Padua, Padua, Italy

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Eugenio De Carlo Medical Clinic III, Department of Medicine (DIMED), University Hospital of Padua, Padua, Italy

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Francesca Bergamo Unit of Medical Oncology 1, Veneto Institute of Oncology IOV-IRCCS, Padua, Italy

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Sabina Murgioni Unit of Medical Oncology 1, Veneto Institute of Oncology IOV-IRCCS, Padua, Italy

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Riccardo Carandina Radiodiagnostic Unit, University Hospital of Padua, Padua, Italy

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Anna Rita Cervino Radiotherapy and Nuclear Medicine Unit, Istituto Oncologico Veneto IOV-IRCCS, Padua, Italy

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Marta Burei Radiotherapy and Nuclear Medicine Unit, Istituto Oncologico Veneto IOV-IRCCS, Padua, Italy

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Federica Vianello Radiotherapy and Nuclear Medicine Unit, Istituto Oncologico Veneto IOV-IRCCS, Padua, Italy

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Vittorina Zagonel Unit of Medical Oncology 1, Veneto Institute of Oncology IOV-IRCCS, Padua, Italy

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Matteo Fassan Surgical Pathology Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy

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Roberto Vettor Medical Clinic III, Department of Medicine (DIMED), University Hospital of Padua, Padua, Italy

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in both these groups the relationship between bone metastases, primary type/site of NET, laboratory parameters (chromogranin A (CgA), calcium, phosphate, parathyroid hormone (PTH) and vitamin D) and proliferation markers (Ki-67 and mitotic index

Article Type:
Research Article
Collections:
Hormones and Cancer
DOI:
https://doi.org/10.1530/EC-21-0568
Volume/Issue:
Volume 11: Issue 7
Open access
Adriana J van Ballegooijen Department of Health Sciences, Department of Epidemiology and Biostatistics, Department of Public Health, Department of General Practice, Department of Internal Medicine and Cardiovascular Research Institute Maastricht, Department of Internal Medicine, Faculty of Earth and Life Sciences, EMGO Institute for Health and Care Research, VU University Amsterdam, De Boelelaan 1085, 1081 HV Amsterdam, The Netherlands

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Marjolein Visser Department of Health Sciences, Department of Epidemiology and Biostatistics, Department of Public Health, Department of General Practice, Department of Internal Medicine and Cardiovascular Research Institute Maastricht, Department of Internal Medicine, Faculty of Earth and Life Sciences, EMGO Institute for Health and Care Research, VU University Amsterdam, De Boelelaan 1085, 1081 HV Amsterdam, The Netherlands
Department of Health Sciences, Department of Epidemiology and Biostatistics, Department of Public Health, Department of General Practice, Department of Internal Medicine and Cardiovascular Research Institute Maastricht, Department of Internal Medicine, Faculty of Earth and Life Sciences, EMGO Institute for Health and Care Research, VU University Amsterdam, De Boelelaan 1085, 1081 HV Amsterdam, The Netherlands

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Marieke B Snijder Department of Health Sciences, Department of Epidemiology and Biostatistics, Department of Public Health, Department of General Practice, Department of Internal Medicine and Cardiovascular Research Institute Maastricht, Department of Internal Medicine, Faculty of Earth and Life Sciences, EMGO Institute for Health and Care Research, VU University Amsterdam, De Boelelaan 1085, 1081 HV Amsterdam, The Netherlands

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Jacqueline M Dekker Department of Health Sciences, Department of Epidemiology and Biostatistics, Department of Public Health, Department of General Practice, Department of Internal Medicine and Cardiovascular Research Institute Maastricht, Department of Internal Medicine, Faculty of Earth and Life Sciences, EMGO Institute for Health and Care Research, VU University Amsterdam, De Boelelaan 1085, 1081 HV Amsterdam, The Netherlands

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Giel Nijpels Department of Health Sciences, Department of Epidemiology and Biostatistics, Department of Public Health, Department of General Practice, Department of Internal Medicine and Cardiovascular Research Institute Maastricht, Department of Internal Medicine, Faculty of Earth and Life Sciences, EMGO Institute for Health and Care Research, VU University Amsterdam, De Boelelaan 1085, 1081 HV Amsterdam, The Netherlands

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Coen D A Stehouwer Department of Health Sciences, Department of Epidemiology and Biostatistics, Department of Public Health, Department of General Practice, Department of Internal Medicine and Cardiovascular Research Institute Maastricht, Department of Internal Medicine, Faculty of Earth and Life Sciences, EMGO Institute for Health and Care Research, VU University Amsterdam, De Boelelaan 1085, 1081 HV Amsterdam, The Netherlands

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Michaela Diamant Department of Health Sciences, Department of Epidemiology and Biostatistics, Department of Public Health, Department of General Practice, Department of Internal Medicine and Cardiovascular Research Institute Maastricht, Department of Internal Medicine, Faculty of Earth and Life Sciences, EMGO Institute for Health and Care Research, VU University Amsterdam, De Boelelaan 1085, 1081 HV Amsterdam, The Netherlands

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Ingeborg A Brouwer Department of Health Sciences, Department of Epidemiology and Biostatistics, Department of Public Health, Department of General Practice, Department of Internal Medicine and Cardiovascular Research Institute Maastricht, Department of Internal Medicine, Faculty of Earth and Life Sciences, EMGO Institute for Health and Care Research, VU University Amsterdam, De Boelelaan 1085, 1081 HV Amsterdam, The Netherlands

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serum 25-hydroxyvitamin D (25(OH)D) levels, the principal circulating storage form, will result in proportionally higher parathyroid hormone (PTH) levels to maintain serum and total body calcium. Vitamin D and PTH receptors have been detected in

Article Type:
Research Article
DOI:
https://doi.org/10.1530/EC-12-0033
Volume/Issue:
Volume 1: Issue 1
Open access
Niek F Dirks Atalmedial Diagnostics Centre, Spaarne Gasthuis, Haarlem, The Netherlands
Department of Clinical Chemistry, Hematology and Immunology, Noordwest Ziekenhuis, Alkmaar, The Netherlands

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Etienne Cavalier Department of Clinical Chemistry, University of Liège, CHU de Liège, Liège, Belgium

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Annemieke C Heijboer Amsterdam UMC location Vrije Universiteit Amsterdam, Department of Clinical Chemistry, Endocrine Laboratory, Boelelaan, Amsterdam, The Netherlands
Amsterdam Gastroenterology, Endocrinology & Metabolism, Amsterdam, The Netherlands
Amsterdam UMC location University of Amsterdam, Department of Clinical Chemistry, Endocrine Laboratory, Amsterdam, The Netherlands
Amsterdam Reproduction & Development Research Institute, Amsterdam, The Netherlands

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assessment of vitamin D status. Metabolism Vitamin D is not a single molecule that after production or ingestion rushes through our veins to exert its function on the target organs to maintain calcium homeostasis. In fact, it requires a whole cascade

Article Type:
Review Article
Collections:
Bone and Mineral Metabolism
DOI:
https://doi.org/10.1530/EC-22-0269
Volume/Issue:
Volume 12: Issue 4
Open access
Silvia Ciancia Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium

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Vanessa Dubois Basic and Translational Endocrinology (BaTE), Department of Basic and Applied Medical Sciences, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium

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Martine Cools Department of Internal Medicine and Pediatrics, Ghent University, Pediatric Endocrinology Service, Ghent University Hospital, Ghent, Belgium

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an adequate calcium intake and regular physical activity, plays an important role. Bone mass accrual is not constant during growth. After a rapid expansion phase in the first 2 years of life, a more steady rate of bone mass acquisition characterizes

Article Type:
Review Article
Collections:
Reproduction
DOI:
https://doi.org/10.1530/EC-22-0280
Volume/Issue:
Volume 11: Issue 11
Open access
Natércia Neves Marques de Queiroz University Hospital João de Barros Barreto, Federal University of Pará, Endocrinology Division, Belem, Pará, Brazil

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Franciane Trindade Cunha de Melo University Hospital João de Barros Barreto, Federal University of Pará, Endocrinology Division, Belem, Pará, Brazil

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Fabrício de Souza Resende University Hospital João de Barros Barreto, Federal University of Pará, Endocrinology Division, Belem, Pará, Brazil

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Luísa Corrêa Janaú University Hospital João de Barros Barreto, Federal University of Pará, Endocrinology Division, Belem, Pará, Brazil

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Norberto Jorge Kzan de Souza Neto University Hospital João de Barros Barreto, Federal University of Pará, Endocrinology Division, Belem, Pará, Brazil

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Manuela Nascimento de Lemos University Hospital João de Barros Barreto, Federal University of Pará, Endocrinology Division, Belem, Pará, Brazil

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Ana Carolina Lobato Virgolino University Hospital João de Barros Barreto, Federal University of Pará, Endocrinology Division, Belem, Pará, Brazil

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Maria Clara Neres Iunes de Oliveira University Hospital João de Barros Barreto, Federal University of Pará, Endocrinology Division, Belem, Pará, Brazil

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Angélica Leite de Alcântara University Hospital João de Barros Barreto, Federal University of Pará, Endocrinology Division, Belem, Pará, Brazil

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Lorena Vilhena de Moraes University Hospital João de Barros Barreto, Federal University of Pará, Endocrinology Division, Belem, Pará, Brazil

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Tiago Franco David University Hospital João de Barros Barreto, Federal University of Pará, Endocrinology Division, Belem, Pará, Brazil

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Wanderson Maia da Silva University Hospital João de Barros Barreto, Federal University of Pará, Endocrinology Division, Belem, Pará, Brazil

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Scarlatt Souza Reis University Hospital João de Barros Barreto, Federal University of Pará, Endocrinology Division, Belem, Pará, Brazil

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Márcia Costa dos Santos University Hospital João de Barros Barreto, Federal University of Pará, Endocrinology Division, Belem, Pará, Brazil

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Ana Carolina Contente Braga de Souza University Hospital João de Barros Barreto, Federal University of Pará, Endocrinology Division, Belem, Pará, Brazil

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Pedro Paulo Freire Piani University Hospital João de Barros Barreto, Federal University of Pará, Endocrinology Division, Belem, Pará, Brazil

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Neyla Arroyo Lara Mourão University Hospital João de Barros Barreto, Federal University of Pará, Endocrinology Division, Belem, Pará, Brazil

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Karem Mileo Felício University Hospital João de Barros Barreto, Federal University of Pará, Endocrinology Division, Belem, Pará, Brazil

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João Felício Abrahão Neto University Hospital João de Barros Barreto, Federal University of Pará, Endocrinology Division, Belem, Pará, Brazil

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João Soares Felício University Hospital João de Barros Barreto, Federal University of Pará, Endocrinology Division, Belem, Pará, Brazil

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becomes meaningfully important. Method Study design and data collection A cross-sectional study was performed to evaluate serum levels of 25(OH)D, intact PTH and ionized calcium. All our subjects lived in the state of Pará (coordinates: 3.95°S

Article Type:
Research Article
DOI:
https://doi.org/10.1530/EC-20-0206
Volume/Issue:
Volume 9: Issue 7
Open access
Keiko Ohkuwa Department of Surgery, Ito Hospital, Tokyo, Japan

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Kiminori Sugino Department of Surgery, Ito Hospital, Tokyo, Japan

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Ryohei Katoh Department of Pathology, Ito Hospital, Tokyo, Japan

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Mitsuji Nagahama Department of Surgery, Ito Hospital, Tokyo, Japan

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Wataru Kitagawa Department of Surgery, Ito Hospital, Tokyo, Japan

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Kenichi Matsuzu Department of Surgery, Ito Hospital, Tokyo, Japan

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Akifumi Suzuki Department of Surgery, Ito Hospital, Tokyo, Japan

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Chisato Tomoda Department of Surgery, Ito Hospital, Tokyo, Japan

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Kiyomi Hames Department of Surgery, Ito Hospital, Tokyo, Japan

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Junko Akaishi Department of Surgery, Ito Hospital, Tokyo, Japan

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Chie Masaki Department of Surgery, Ito Hospital, Tokyo, Japan

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Kana Yoshioka Department of Surgery, Ito Hospital, Tokyo, Japan

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Koichi Ito Department of Surgery, Ito Hospital, Tokyo, Japan

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collection test data (serum calcium, phosphorus, parathyroid hormone (intact PTH), creatinine, alkaline phosphatase (ALP), white blood cell count, and platelet count), and the size of the parathyroid mass were collected from medical charts. The size of the

Article Type:
Research Article
Collections:
Bone and Mineral Metabolism
DOI:
https://doi.org/10.1530/EC-22-0062
Volume/Issue:
Volume 11: Issue 7
Open access
Bekir Cakir Department of Endocrinology and Metabolism, Faculty of Medicine, Ankara Yildirim Beyazit University, Ankara, Turkey

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F Neslihan Cuhaci Seyrek Department of Endocrinology and Metabolism, Faculty of Medicine, Ankara Yildirim Beyazit University, Ankara, Turkey

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Oya Topaloglu Department of Endocrinology and Metabolism, Faculty of Medicine, Ankara Yildirim Beyazit University, Ankara, Turkey

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Didem Ozdemir Department of Endocrinology and Metabolism, Faculty of Medicine, Ankara Yildirim Beyazit University, Ankara, Turkey

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Ahmet Dirikoc Department of Endocrinology and Metabolism, Faculty of Medicine, Ankara Yildirim Beyazit University, Ankara, Turkey

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Cevdet Aydin Department of Endocrinology and Metabolism, Faculty of Medicine, Ankara Yildirim Beyazit University, Ankara, Turkey

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Sefika Burcak Polat Department of Endocrinology and Metabolism, Faculty of Medicine, Ankara Yildirim Beyazit University, Ankara, Turkey

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Berna Evranos Ogmen Department of Endocrinology and Metabolism, Faculty of Medicine, Ankara Yildirim Beyazit University, Ankara, Turkey

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Ali Abbas Tam Department of Endocrinology and Metabolism, Faculty of Medicine, Ankara Yildirim Beyazit University, Ankara, Turkey

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Husniye Baser Department of Endocrinology and Metabolism, Faculty of Medicine, Ankara Yildirim Beyazit University, Ankara, Turkey

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Aylin Kilic Yazgan Department of Pathology, Ankara Ataturk Education and Research Hospital, Ankara, Turkey

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Mehmet Kilic Department of General Surgery, Faculty of Medicine, Ankara Yildirim Beyazit University, Ankara, Turkey

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Afra Alkan Department of Biostatistics, Faculty of Medicine, Ankara Yildirim Beyazit University, Ankara, Turkey

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Reyhan Ersoy Department of Endocrinology and Metabolism, Faculty of Medicine, Ankara Yildirim Beyazit University, Ankara, Turkey

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serum calcium (Ca) levels ( 3 ). Accordingly, 85–90% of PHPT cases are caused by parathyroid adenomas (PAs), a type of benign tumour ( 4 ), with other causes including double adenoma (4%), multiple gland hyperplasia (6%) and parathyroid carcinoma (<1

Article Type:
Research Article
DOI:
https://doi.org/10.1530/EC-19-0443
Volume/Issue:
Volume 8: Issue 12
Open access
Yuan Liu Department of Endocrinology, Qilu Hospital of Shandong University, Jinan, China
Institute of Endocrine and Metabolic Diseases of Shandong University, Jinan, China
Key Laboratory of Endocrine and Metabolic Diseases, Shandong Province Medicine & Health, Jinan, China

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Siyi Guo Department of Endocrinology, Qilu Hospital of Shandong University, Jinan, China
Institute of Endocrine and Metabolic Diseases of Shandong University, Jinan, China
Key Laboratory of Endocrine and Metabolic Diseases, Shandong Province Medicine & Health, Jinan, China

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Jinsong Wu Department of Endocrinology, Qilu Hospital of Shandong University, Jinan, China
Institute of Endocrine and Metabolic Diseases of Shandong University, Jinan, China
Key Laboratory of Endocrine and Metabolic Diseases, Shandong Province Medicine & Health, Jinan, China

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Rongai Wang Department of Endocrinology, Qilu Hospital of Shandong University, Jinan, China
Health Management Center, The Second Affiliated Hospital of Zhejiang Chinese Medicine University, Zhejiang, China

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Jinbo Liu Department of Endocrinology, Qilu Hospital of Shandong University, Jinan, China
Institute of Endocrine and Metabolic Diseases of Shandong University, Jinan, China
Key Laboratory of Endocrine and Metabolic Diseases, Shandong Province Medicine & Health, Jinan, China

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Yan Liu Department of Endocrinology, Qilu Hospital of Shandong University, Jinan, China
Institute of Endocrine and Metabolic Diseases of Shandong University, Jinan, China
Key Laboratory of Endocrine and Metabolic Diseases, Shandong Province Medicine & Health, Jinan, China

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Bin Lv Department of Thyroid Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan, China

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Nan Liu Department of Thyroid Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan, China

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Ling Jiang Department of Endocrinology, Qilu Hospital of Shandong University, Jinan, China
Institute of Endocrine and Metabolic Diseases of Shandong University, Jinan, China
Key Laboratory of Endocrine and Metabolic Diseases, Shandong Province Medicine & Health, Jinan, China

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Xiaoli Zhang Department of Endocrinology, Qilu Hospital of Shandong University, Jinan, China
Institute of Endocrine and Metabolic Diseases of Shandong University, Jinan, China
Key Laboratory of Endocrine and Metabolic Diseases, Shandong Province Medicine & Health, Jinan, China

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Introduction In the 1970s, due to the popularization of serum calcium (Ca) examination, a novel type of primary hyperparathyroidism (PHPT) called asymptomatic PHPT (aPHPT) emerged. It lacks the typical clinical symptoms caused by excessive

Article Type:
Research Article
DOI:
https://doi.org/10.1530/EC-21-0382
Volume/Issue:
Volume 10: Issue 11
Open access