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T P Parikh Program in Reproductive and Adult Endocrinology, National Institute of Child Health and Human Development, National Institutes of Health (NIH), Bethesda, Maryland, USA

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B Stolze Department of Laboratory Medicine, Clinical Center, NIH, Bethesda, Maryland, USA

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Y Ozarda Department of Medical Biochemistry, Faculty of Medicine, Uludag University, Bursa, Turkey

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J Jonklaas Division of Endocrinology and Metabolism, Department of Medicine, Georgetown University, Washington, District of Columbia, USA

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K Welsh Department of Laboratory Medicine, Clinical Center, NIH, Bethesda, Maryland, USA

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L Masika Department of Laboratory Medicine and Pathology/National Health Laboratory Service Walter Sisulu University, Mthatha, South Africa

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M Hill Program in Reproductive and Adult Endocrinology, National Institute of Child Health and Human Development, National Institutes of Health (NIH), Bethesda, Maryland, USA

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A DeCherney Program in Reproductive and Adult Endocrinology, National Institute of Child Health and Human Development, National Institutes of Health (NIH), Bethesda, Maryland, USA

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S J Soldin Department of Laboratory Medicine, Clinical Center, NIH, Bethesda, Maryland, USA
Division of Endocrinology and Metabolism, Department of Medicine, Georgetown University, Washington, District of Columbia, USA

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Introduction Diurnal variations in the serum concentration of steroid hormones and their metabolism, as assessed by urinary excretion, have long been known for cortisol and testosterone ( 1 , 2 , 3 ). Less information exists for the other up

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María J Gómora Departamento de Embriología, Facultad de Medicina, Universidad Nacional Autónoma de México, CdMx, Mexico

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Flavia Morales-Vásquez Departamento de Oncología Médica, Instituto Nacional de Cancerología, Secretaría de Salud de México, CdMx, Mexico

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Enrique Pedernera Departamento de Embriología, Facultad de Medicina, Universidad Nacional Autónoma de México, CdMx, Mexico

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Delia Perez-Montiel Departamento de Patología, Instituto Nacional de Cancerología, Secretaría de Salud de México, CdMx, Mexico

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Horacio López-Basave Departamento de Cirugía Oncológica, Instituto Nacional de Cancerología, Secretaría de Salud de México, CdMx, Mexico

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Antonio R Villa División de Investigación, Facultad de Medicina, Universidad Nacional Autónoma de México, CdMx, Mexico

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Azucena Hernández-Martínez Hospital Militar de Especialidades de la Mujer y Neonatología, Secretaría de la Defensa Nacional, CdMx, Mexico

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Esteban Mena Unidad de Apoyo Académico, Secretaría General, Facultad de Medicina, Universidad Nacional Autónoma de México, CdMx, Mexico

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Carmen Mendez Departamento de Embriología, Facultad de Medicina, Universidad Nacional Autónoma de México, CdMx, Mexico

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that can increase the incidence as well as tumor aggressiveness ( 8 , 9 , 10 ). Sexual steroid hormones acting through their receptors regulate signaling pathways related to cell proliferation, epithelial–mesenchymal transition, apoptosis, cell

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Sonja Kunz Department of Medicine IV, University Hospital, Ludwig Maximilian University Munich, Munich, Germany

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Xiao Wang Department of Medicine IV, University Hospital, Ludwig Maximilian University Munich, Munich, Germany

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Uta Ferrari Department of Medicine IV, University Hospital, Ludwig Maximilian University Munich, Munich, Germany

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Michael Drey Department of Medicine IV, University Hospital, Ludwig Maximilian University Munich, Munich, Germany

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Marily Theodoropoulou Department of Medicine IV, University Hospital, Ludwig Maximilian University Munich, Munich, Germany

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Katharina Schilbach Department of Medicine IV, University Hospital, Ludwig Maximilian University Munich, Munich, Germany

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Martin Reincke Department of Medicine IV, University Hospital, Ludwig Maximilian University Munich, Munich, Germany

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Margit Heier Institute of Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
KORA Study Centre, University Hospital of Augsburg, Augsburg, Augsburg, Germany

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Annette Peters Institute of Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
German Centre for Cardiovascular Research (DZHK), Partner site Munich Heart Alliance, Munich, Germany

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Wolfgang Koenig German Centre for Cardiovascular Research (DZHK), Partner site Munich Heart Alliance, Munich, Germany
German Heart Centre Munich, Technical University of Munich, Munich, Germany
Institute of Epidemiology and Medical Biometry, University of Ulm, Ulm, Germany

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Tanja Zeller Department of General and Interventional Cardiology, University Heart Center Hamburg, Hamburg, Germany
German Centre for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, Hamburg, Germany

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Barbara Thorand Institute of Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany

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Martin Bidlingmaier Department of Medicine IV, University Hospital, Ludwig Maximilian University Munich, Munich, Germany

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Introduction Steroid hormones are signaling molecules involved in regulation of electrolyte concentrations, blood pressure, reproductive functions, and metabolism ( 1 ). A lack or an excess of steroids results from enzyme defects, adenomas, or

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Johanna Christina Penell Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden
Department of Medical Sciences, Occupational and Environmental Medicine, Uppsala University, Uppsala, Sweden

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Mark M Kushnir Department of Pathology, University of Utah School of Medicine, Salt Lake City, Utah, USA
ARUP Institute for Clinical and Experimental Pathology, Salt Lake City, Utah, USA

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Lars Lind Department of Medical Sciences, Cardiovascular Epidemiology, Uppsala University, Uppsala, Sweden

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Jonatan Bergquist Department of Chemistry – BMC, Analytical Chemistry, Uppsala University, Uppsala, Sweden

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Jonas Bergquist Department of Pathology, University of Utah School of Medicine, Salt Lake City, Utah, USA
Department of Chemistry – BMC, Analytical Chemistry, Uppsala University, Uppsala, Sweden

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P Monica Lind Department of Medical Sciences, Occupational and Environmental Medicine, Uppsala University, Uppsala, Sweden

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Tord Naessen Department of Women’s and Children’s Health, Uppsala University, Uppsala, Sweden

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are very few studies aimed on measurement of bioactive sex hormones and their precursors in elderly apparently healthy individuals ( 21 ) and individuals with pathology ( 22 , 23 ). Accurate quantification of the low concentrations of sex steroids

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Martijn J J Finken Department of Pediatric Endocrinology, Emma Children’s Hospital, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands

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Aleid J G Wirix Department of Public and Occupational Health, EMGO Institute for Health and Care Research, Amsterdam University Medical Centers, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands

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Ines A von Rosenstiel-Jadoul Department of Pediatrics, Rijnstate Hospital, Arnhem, The Netherlands

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Bibian van der Voorn Department of Pediatric Endocrinology and Obesity Center CGG, Erasmus MC Sophia Children’s Hospital, Rotterdam, The Netherlands

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Mai J M Chinapaw Department of Public and Occupational Health, EMGO Institute for Health and Care Research, Amsterdam University Medical Centers, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands

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Michaela F Hartmann Steroid Research and Mass Spectrometry Unit, Laboratory for Translational Hormone Analytics, Department of Pediatric Endocrinology & Diabetology, Center of Child and Adolescent Medicine, Justus Liebig University, Giessen, Germany

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Joana E Kist-van Holthe Department of Public and Occupational Health, EMGO Institute for Health and Care Research, Amsterdam University Medical Centers, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands

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Stefan A Wudy Steroid Research and Mass Spectrometry Unit, Laboratory for Translational Hormone Analytics, Department of Pediatric Endocrinology & Diabetology, Center of Child and Adolescent Medicine, Justus Liebig University, Giessen, Germany

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Joost Rotteveel Department of Pediatric Endocrinology, Emma Children’s Hospital, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands

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. The art of measuring steroids: principles and practice of current hormonal steroid analysis . Journal of Steroid Biochemistry and Molecular Biology 2018 179 88 – 103 . ( https://doi.org/10.1016/j.jsbmb.2017.09.003 ) 25 Mosteller RD Simplified

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Henrik Ryberg Department of Clinical Chemistry, Sahlgrenska University Hospital, Gothenburg, Sweden
Sahlgrenska Osteoporosis Centre, Center for Bone and Arthritis Research (CBAR), Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden

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Anna-Karin Norlén Department of Clinical Chemistry, Sahlgrenska University Hospital, Gothenburg, Sweden
Sahlgrenska Osteoporosis Centre, Center for Bone and Arthritis Research (CBAR), Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden

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Andreas Landin Department of Clinical Chemistry, Sahlgrenska University Hospital, Gothenburg, Sweden
Sahlgrenska Osteoporosis Centre, Center for Bone and Arthritis Research (CBAR), Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden

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Per Johansson Sahlgrenska Osteoporosis Centre, Center for Bone and Arthritis Research (CBAR), Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden

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Zeinab Salman Sahlgrenska Osteoporosis Centre, Center for Bone and Arthritis Research (CBAR), Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden

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Anders Wallin Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Mölndal, Sweden

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Johan Svensson Sahlgrenska Osteoporosis Centre, Center for Bone and Arthritis Research (CBAR), Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
Department of Endocrinology, Skaraborg Central Hospital, Skövde, Sweden

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Claes Ohlsson Sahlgrenska Osteoporosis Centre, Center for Bone and Arthritis Research (CBAR), Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden

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Introduction Sex steroid hormones are predominantly produced from cholesterol by the gonads and the adrenal glands. Then, the sex steroids are distributed to target tissues through the circulation. In addition, many tissues and organs

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Thomas Reinehr Department of Pediatric Endocrinology, Diabetes, and Nutrition Medicine, Vestische Hospital for Children and Adolescents, University of Witten/Herdecke, Datteln, Germany

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Alexandra Kulle Division of Pediatric Endocrinology and Diabetes, Department of Pediatrics, University Hospital of Schleswig – Holstein, UKSH, Campus Kiel/Christian Albrechts University of Kiel, CAU, Kiel, Germany

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Juliane Rothermel Department of Pediatric Endocrinology, Diabetes, and Nutrition Medicine, Vestische Hospital for Children and Adolescents, University of Witten/Herdecke, Datteln, Germany

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Caroline Knop-Schmenn Department of Pediatric Endocrinology, Diabetes, and Nutrition Medicine, Vestische Hospital for Children and Adolescents, University of Witten/Herdecke, Datteln, Germany

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Nina Lass Department of Pediatric Endocrinology, Diabetes, and Nutrition Medicine, Vestische Hospital for Children and Adolescents, University of Witten/Herdecke, Datteln, Germany

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Christina Bosse Department of Pediatric Endocrinology, Diabetes, and Nutrition Medicine, Vestische Hospital for Children and Adolescents, University of Witten/Herdecke, Datteln, Germany

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Paul-Martin Holterhus Division of Pediatric Endocrinology and Diabetes, Department of Pediatrics, University Hospital of Schleswig – Holstein, UKSH, Campus Kiel/Christian Albrechts University of Kiel, CAU, Kiel, Germany

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regulation of precursors of androgens and other steroid hormones within the steroid metabolome encompassing glucocorticoids, mineralocorticoids and estrogens is largely unknown in PCOS. Although PCOS has frequently been reported in adolescents, the

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Britt J van Keulen Department of Pediatric Endocrinology, Emma Children’s Hospital, Amsterdam University Medical Centers, location VUmc, Amsterdam, The Netherlands
Department of Pediatrics, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam Reproduction & Development Research Institute, de Boelelaan, Amsterdam, The Netherlands

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Michelle Romijn Department of Pediatric Endocrinology, Emma Children’s Hospital, Amsterdam University Medical Centers, location VUmc, Amsterdam, The Netherlands
Department of Pediatrics, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam Reproduction & Development Research Institute, de Boelelaan, Amsterdam, The Netherlands

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Bibian van der Voorn Department of Pediatric Endocrinology, Sophia Kinderziekenhuis, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands

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Marita de Waard Emma Children’s Hospital, Amsterdam University Medical Centers, locations AMC and VUmc, Amsterdam, The Netherlands

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Michaela F Hartmann Steroid Research and Mass Spectrometry Unit, Laboratory for Translational Hormone Analytics, Pediatric Endocrinology & Diabetology, Center of Child and Adolescent Medicine, Justus-Liebig-University, Giessen, Germany

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Johannes B van Goudoever Emma Children’s Hospital, Amsterdam University Medical Centers, locations AMC and VUmc, Amsterdam, The Netherlands

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Stefan A Wudy Steroid Research and Mass Spectrometry Unit, Laboratory for Translational Hormone Analytics, Pediatric Endocrinology & Diabetology, Center of Child and Adolescent Medicine, Justus-Liebig-University, Giessen, Germany

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Joost Rotteveel Department of Pediatric Endocrinology, Emma Children’s Hospital, Amsterdam University Medical Centers, location VUmc, Amsterdam, The Netherlands

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Martijn J J Finken Department of Pediatric Endocrinology, Emma Children’s Hospital, Amsterdam University Medical Centers, location VUmc, Amsterdam, The Netherlands
Department of Pediatrics, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam Reproduction & Development Research Institute, de Boelelaan, Amsterdam, The Netherlands

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and thawed only once just before analysis. After placement in a salivette, the pad was centrifuged at 1900 g for 5 min, enabling the extraction of urine. Urinary steroids were determined using quantitative data produced by gas chromatography

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Sandra R Dahl Hormone Laboratory, Department of Medical Biochemistry, Oslo University Hospital, Oslo, Norway

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Ingrid Nermoen Institute of Clinical Medicine, University of Oslo, Oslo, Norway
Division of Medicine, Akershus University Hospital, Lørenskog, Norway

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Ingeborg Brønstad National Centre for Ultrasound in Gastroenterology, Haukeland University Hospital, Bergen, Norway
Department of Clinical Medicine, University of Bergen, Bergen, Norway

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Eystein S Husebye Department of Clinical Science, University of Bergen, Bergen, Norway
K.G. Jebsen-Center for Autoimmune Diseases, University of Bergen, Bergen, Norway
Department of Medicine, Haukeland University Hospital, Bergen, Norway

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Kristian Løvås Department of Clinical Science, University of Bergen, Bergen, Norway
K.G. Jebsen-Center for Autoimmune Diseases, University of Bergen, Bergen, Norway
Department of Medicine, Haukeland University Hospital, Bergen, Norway

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Per M Thorsby Hormone Laboratory, Department of Medical Biochemistry, Oslo University Hospital, Oslo, Norway

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(CAH due to steroid 21-hydroxylase deficiency) consistently timed hormone measurements relative to medication schedule and time of day is recommended ( 1 ). Drug fasting morning values of androstenedione and testosterone should be in the normal range

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Willem de Ronde Department of Internal Medicine, Spaarne Gasthuis, Haarlem, the Netherlands

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Diederik L Smit Department of Internal Medicine, Spaarne Gasthuis, Haarlem, the Netherlands

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better ratio of muscle growth vs side effects. Although this claim is far from being supported by clinical trials, SARMs are promoted as a safer, albeit more expensive, alternative to steroidal androgens. Thyroid hormone, clenbuterol and dinitrophenol

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