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Tristan Avril Pediatric Endocrinology Department, CHU Bicetre, Assistance Publique-Hôpitaux de Paris, Reference Center for Rare Disease CRMR DevGen, Le Kremlin Bicêtre, Paris, France

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Quentin Hennocq Datascience platform, Imagine Institute, Université Paris Cité, Paris, France

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Anne-Sophie Lambert Pediatric Endocrinology Department, CHU Bicetre, Assistance Publique-Hôpitaux de Paris, Reference Center for Rare Disease CRMR DevGen, Le Kremlin Bicêtre, Paris, France

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Juliane Leger Pediatric Endocrinology Department, CHU Robert Debré, Assistance Publique-Hôpitaux de Paris, Reference Center for Rare Disease CRMR de la Croissance et du Développement, Paris, France
Université Paris Cité, Faculté de Santé, UFR de Médecine, Paris, France

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Dominique Simon Pediatric Endocrinology Department, CHU Robert Debré, Assistance Publique-Hôpitaux de Paris, Reference Center for Rare Disease CRMR de la Croissance et du Développement, Paris, France

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Laetitia Martinerie Pediatric Endocrinology Department, CHU Robert Debré, Assistance Publique-Hôpitaux de Paris, Reference Center for Rare Disease CRMR de la Croissance et du Développement, Paris, France
Université Paris Cité, Faculté de Santé, UFR de Médecine, Paris, France
Inserm UMR1185, Le Kremlin Bicetre, Paris, France

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Claire Bouvattier Pediatric Endocrinology Department, CHU Bicetre, Assistance Publique-Hôpitaux de Paris, Reference Center for Rare Disease CRMR DevGen, Le Kremlin Bicêtre, Paris, France
Inserm UMR1185, Le Kremlin Bicetre, Paris, France
Paris-Saclay University, Paris, France

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failure and infertility. Mini-puberty is a period of neonatal life which corresponds to an early and transient activation of the gonadotropic axis. Several studies have shown that this period is crucial for the early proliferation of Leydig and Sertoli

Article Type:
Research Article
Collections:
Reproduction
DOI:
https://doi.org/10.1530/EC-22-0252
Volume/Issue:
Volume 12: Issue 4
Open access
Marie Lindhardt Ljubicic Department of Growth and Reproduction, Copenhagen University Hospital – Rigshospitalet, Copenhagen, Denmark
International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark

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Trine Holm Johannsen Department of Growth and Reproduction, Copenhagen University Hospital – Rigshospitalet, Copenhagen, Denmark
International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark

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Margit Bistrup Fischer Department of Growth and Reproduction, Copenhagen University Hospital – Rigshospitalet, Copenhagen, Denmark
International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark

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Emmie N Upners Department of Growth and Reproduction, Copenhagen University Hospital – Rigshospitalet, Copenhagen, Denmark
International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark

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Alexander S Busch Department of Growth and Reproduction, Copenhagen University Hospital – Rigshospitalet, Copenhagen, Denmark
International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark

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Katharina M Main Department of Growth and Reproduction, Copenhagen University Hospital – Rigshospitalet, Copenhagen, Denmark
International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark

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Anna-Maria Andersson Department of Growth and Reproduction, Copenhagen University Hospital – Rigshospitalet, Copenhagen, Denmark
International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark

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Casper P Hagen Department of Growth and Reproduction, Copenhagen University Hospital – Rigshospitalet, Copenhagen, Denmark
International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark

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Anders Juul Department of Growth and Reproduction, Copenhagen University Hospital – Rigshospitalet, Copenhagen, Denmark
International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark

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this, many patients with DSD are not diagnosed during the narrow time interval of minipuberty previously studied ( 1 ). Moreover, while minipuberty is a period of pituitary–gonadal activation, reproductive hormones are still quantifiable, particularly

Article Type:
Review Article
Collections:
Paediatric Endocrinology
DOI:
https://doi.org/10.1530/EC-22-0275
Volume/Issue:
Volume 12: Issue 3
Open access
Alan D Rogol Department of Pediatrics, University of Virginia, Charlottesville, Virginia, USA

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had a 45,X karyotype was in the streak gonad ( 13 ). The emphasis here will be on fertility and how one might predict that at various epochs within an individual’s lifespan: fetal, ‘mini’-puberty, childhood, puberty, adulthood, and aging (summarized

Article Type:
Review Article
Collections:
Reproduction
DOI:
https://doi.org/10.1530/EC-22-0440
Volume/Issue:
Volume 12: Issue 9
Open access
Agnieszka Pazderska Department of Endocrinology, Newcastle-upon-Tyne Hospitals, Newcastle upon Tyne, UK
Department of Endocrinology, St James’s Hospital, Dublin, Ireland

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Yaasir Mamoojee Department of Endocrinology, Newcastle-upon-Tyne Hospitals, Newcastle upon Tyne, UK

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Satish Artham Department of Endocrinology, Newcastle-upon-Tyne Hospitals, Newcastle upon Tyne, UK

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Margaret Miller Department of Endocrinology, Newcastle-upon-Tyne Hospitals, Newcastle upon Tyne, UK

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Stephen G Ball Department of Endocrinology, Central Manchester University Hospitals, Manchester, UK
Department of Endocrinology, University of Manchester, Manchester, UK

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Tim Cheetham Endocrine Research Group, Institute of Genetic Medicine, University of Newcastle-upon-Tyne, Newcastle upon Tyne, UK
Department of Paediatric Endocrinology & Diabetes, Newcastle-upon-Tyne Hospitals, Newcastle upon Tyne, UK

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Richard Quinton Department of Endocrinology, Newcastle-upon-Tyne Hospitals, Newcastle upon Tyne, UK
Endocrine Research Group, Institute of Genetic Medicine, University of Newcastle-upon-Tyne, Newcastle upon Tyne, UK

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identifiable at baseline evaluation due to the presence of one or more red flags (e.g. congenital non-reproductive defects, particularly anosmia; history of testicular maldescent or neonatal micropenis, indicating likely absent minipuberty) ( 3 ), with the

Article Type:
Research Article
DOI:
https://doi.org/10.1530/EC-17-0241
Volume/Issue:
Volume 7: Issue 1
Open access
Andre Madsen Hormone Laboratory, Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, Bergen, Norway
Department of Growth and Reproduction, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark

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Anders Juul Department of Growth and Reproduction, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark

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Lise Aksglaede Department of Growth and Reproduction, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark

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postnatal life in healthy subjects; high activity is observed in minipuberty ( 4 ), followed by a quiescent period during childhood until pubertal onset following which marked changes in serum concentrations of reproductive hormones are observed until the

Article Type:
Research Article
Collections:
Reproduction
DOI:
https://doi.org/10.1530/EC-22-0537
Volume/Issue:
Volume 12: Issue 5
Open access
Sakina Kherra CHU Parnet Hopital, Algiers, Algeria

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Wendy Forsyth Paterson Royal Hospital for Sick Children, Yorkhill, Glasgow, UK

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Filiz Mine Cizmecioglu Paediatric Endocrinology and Diabetes Department, Kocaeli University, Kocaeli, Turkey

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Jeremy Huw Jones Department of Pediatric Endocrinology, Royal Hospital for Children Glasgow, NHS Greater Glasgow and Clyde, Glasgow, UK

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Mariam Kourime Abderrahim Harouchi Hôpital, Casablanca, Morocco

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Heba Hassan Elsedfy Pediatrics Department, Ain Shams University, Cairo, Egypt

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Sameh Tawfik Department of Pediatrics, Maadi Hospital, Cairo, Egypt

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Andreas Kyriakou Department of Pediatric Endocrinology, Royal Hospital for Children Glasgow, NHS Greater Glasgow and Clyde, Glasgow, UK

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Mohamad Guftar Shaikh Department of Pediatric Endocrinology, Royal Hospital for Children Glasgow, NHS Greater Glasgow and Clyde, Glasgow, UK

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Malcolm David Cairns Donaldson Section of Child Health, Glasgow University School of Medicine, Glasgow, UK

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levels during early childhood are unremarkable, with preservation of minipuberty ( 13 ) but inhibin B levels wane from 10 years onwards ( 7 , 8 , 9 ). Testosterone levels are low during and after puberty, and basal FSH is elevated in some but not all

Article Type:
Research Article
DOI:
https://doi.org/10.1530/EC-21-0277
Volume/Issue:
Volume 10: Issue 9
Open access
Kristian Almstrup Department of Growth and Reproduction, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark

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Hanne Frederiksen Department of Growth and Reproduction, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark

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Anna-Maria Andersson Department of Growth and Reproduction, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark

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Anders Juul Department of Growth and Reproduction, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark

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activated during mini-puberty ( 1 ) right after birth and until approximately 3–6 months of age. However, when puberty is about to start, the HPG-axis is reactivated by activation of the so-called KNDy neurons (Kiss, NKB and Dyn positive neurons) ( 2

Article Type:
Research Article
DOI:
https://doi.org/10.1530/EC-20-0286
Volume/Issue:
Volume 9: Issue 8
Open access
Zofia Kolesinska Department of Pediatric Endocrinology and Rheumatology, Poznan University of Medical Sciences, Poznan, Poland

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James Acierno Jr Endocrinology, Diabetology & Metabolism Service, Lausanne University Hospital, Lausanne, Switzerland

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S Faisal Ahmed Developmental Endocrinology Research Group, School of Medicine, Dentistry & Nursing, University of Glasgow, Glasgow, UK

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Cheng Xu Endocrinology, Diabetology & Metabolism Service, Lausanne University Hospital, Lausanne, Switzerland

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Karina Kapczuk Division of Gynecology, Department of Perinatology and Gynecology, Poznan University of Medical Sciences, Poznan, Poland

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Anna Skorczyk-Werner Department of Medical Genetics, Poznan University of Medical Sciences, Poznan, Poland

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Hanna Mikos Department of Pediatric Endocrinology and Rheumatology, Poznan University of Medical Sciences, Poznan, Poland

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Aleksandra Rojek Department of Pediatric Endocrinology and Rheumatology, Poznan University of Medical Sciences, Poznan, Poland

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Andreas Massouras Saphetor, SA, Lausanne, Switzerland

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Maciej R Krawczynski Department of Medical Genetics, Poznan University of Medical Sciences, Poznan, Poland

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Nelly Pitteloud Endocrinology, Diabetology & Metabolism Service, Lausanne University Hospital, Lausanne, Switzerland

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Marek Niedziela Department of Pediatric Endocrinology and Rheumatology, Poznan University of Medical Sciences, Poznan, Poland

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assessed during expected minipuberty/puberty or after hCG test if assessed during childhood) and AMH, a subcategory of DGD was attributed. Among this subgroup, there were (i) five patients with testicular regression syndrome (TRS), as despite lack of

Article Type:
Research Article
DOI:
https://doi.org/10.1530/EC-18-0472
Volume/Issue:
Volume 7: Issue 12
Open access
Letícia Ribeiro Oliveira Interdisciplinary Group for Studies of Sex Determination and Differentiation (GIEDDS), School of Medical Sciences (FCM), State University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
Department of Pediatrics, Federal University of Uberlandia (UFU), Uberlandia, Minas Gerais, Brazil

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Carlos Alberto Longui Pediatric Endocrinology Unit, School of Medical Sciences, Irmandade da Santa Casa de Misericordia de Sao Paulo, Sao Paulo, Brazil

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Guilherme Guaragna-Filho Interdisciplinary Group for Studies of Sex Determination and Differentiation (GIEDDS), School of Medical Sciences (FCM), State University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
Department of Pediatrics, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil

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José Luiz Costa School of Pharmaceutical Sciences, UNICAMP, Campinas, Sao Paulo, Brazil
Poison Control Center, FCM, UNICAMP, Campinas, Sao Paulo, Brazil

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Rafael Lanaro Poison Control Center, FCM, UNICAMP, Campinas, Sao Paulo, Brazil

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David Antônio Silva Laboratory of Physiology, Division of Clinical Pathology, Clinical Hospital, UNICAMP, Campinas, Sao Paulo, Brazil

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Maria Izabel Chiamolera Fleury Group, Sao Paulo, Brazil

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Maricilda Palandi de Mello Interdisciplinary Group for Studies of Sex Determination and Differentiation (GIEDDS), School of Medical Sciences (FCM), State University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
Laboratory of Human Molecular Genetics, Center for Molecular Biology and Genetics Engineering (CBMEG), UNICAMP, Campinas, Sao Paulo, Brazil

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André Moreno Morcillo Department of Pediatrics, FCM, UNICAMP, Campinas, Sao Paulo, Brazil

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Andrea Trevas Maciel-Guerra Interdisciplinary Group for Studies of Sex Determination and Differentiation (GIEDDS), School of Medical Sciences (FCM), State University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
Department of Medical Genetics and Genomic Medicine, FCM, UNICAMP, Campinas, Sao Paulo, Brazil

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Gil Guerra-Junior Interdisciplinary Group for Studies of Sex Determination and Differentiation (GIEDDS), School of Medical Sciences (FCM), State University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
Department of Pediatrics, FCM, UNICAMP, Campinas, Sao Paulo, Brazil

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stimulation test in childhood (total testosterone higher than 1.5 ng/mL ( 15 , 21 )) or hormonal assessment done during mini-puberty (total testosterone higher than 1.5 ng/mL). The sample included 5 cases of PAIS, 4 cases of 5AR2D and 10 cases of idiopathic

Article Type:
Research Article
Collections:
Paediatric Endocrinology Collection
DOI:
https://doi.org/10.1530/EC-20-0454
Volume/Issue:
Volume 9: Issue 11
Open access
E Kohva Children’s Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
Faculty of Medicine, Department of Physiology, University of Helsinki, Helsinki, Finland

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P J Miettinen Children’s Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland

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S Taskinen Children’s Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
Department of Pediatric Surgery, Children’s Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland

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M Hero Children’s Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland

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A Tarkkanen Children’s Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
Faculty of Medicine, Department of Physiology, University of Helsinki, Helsinki, Finland

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T Raivio Children’s Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
Faculty of Medicine, Department of Physiology, University of Helsinki, Helsinki, Finland

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. Society for Endocrinology UK guidance on the evaluation of suspected disorders of sexual development: emphasising the opportunity to predict adolescent pubertal-failure through a neonatal diagnosis of absent mini-puberty. Clinical Endocrinology 2016

Article Type:
Research Article
DOI:
https://doi.org/10.1530/EC-18-0070
Volume/Issue:
Volume 7: Issue 4
Open access