4 Clinical Trial Unit, Orthopedic Institute, Koenig-Ludwig-Haus, University of Würzburg, Würzburg, Germany.
5 Department of Paediatrics and Adolescent Medicine, Johannes Kepler University Linz, Linz, Austria.
6 Nuffield Department of Orthopaedics, Rheumatology, and Musculoskeletal Sciences, Botnar Research Centre, University of Oxford, Oxford, UK.
7 University College London, Department of Renal Medicine and Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK.
8 Department of Paediatric Nephrology, University Hospitals Leuven, Katholic University of Leuven, Leuven, Belgium.
9 Paediatric Nephrology Rheumatology and Dermatology Unit, Hospices Civils de Lyon, INSERM1033 Research Unit, Lyon, France.
10 Department of Orthopaedics, Great Ormond Street Hospital for Children, London, UK.
11 The Catterall Unit, Royal National Orthopaedic Hospital NHS Trust, Stanmore, UK.
12 Université Paris Cité, Dental School, Montrouge, France.
13 APHP, Department of Odontology, Bretonneau Hospital, Paris, France.
14 APHP, Reference Center for Rare Diseases of Calcium and Phosphate Metabolism, and Filière OSCAR, endo ERN and ERN BOND, Paris, France.
15 Center for Chronic Sick Children, Paediatric Endocrinology, Charité-University Medicine, Berlin, Germany.
16 APHP, Department of Paediatric Orthopedic Surgery, Necker - Enfants Malades University Hospital, Paris, France.
17 Université Paris Cité, Paris, France.
18 Department of Paediatric Nephrology, University Hospital Vall d'Hebron, Autonomous University of Barcelona, Barcelona, Spain.
19 Amsterdam University Medical Centre, Amsterdam, The Netherlands.
20 International XLH Alliance, London, United Kingdom.
21 Phosphatdiabetes e.V., German Patient Association for XLH, Lippstadt, Germany.
22 Paediatric Neurosurgery, Hôpital Femme Mère Enfant, Centre de Référence Craniosténoses, Université de Lyon, INSERM 1033, Lyon, France.
23 San Raffaele University Hospital, Milan, Italy.
24 Paediatric Endocrinology Unit, Karolinska University Hospital, Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden.
25 APHP, Department of Rheumatology, Cochin Hospital, Paris, France.
26 INSERM UMR-1153, Paris, France.
27 Université Paris Saclay, Inserm, AP-HP, Physiologie et Physiopathologie Endocriniennes, Service d'Endocrinologie et des Maladies de la Reproduction, Hôpital Bicêtre Paris Saclay, Le Kremlin Bicêtre, France.
28 Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Aarhus, Denmark.
29 Université Paris Saclay, Inserm, AP-HP, Physiologie et Physiopathologie Endocriniennes, Service Endocrinologie et diabète de l'enfant, Hôpital Bicêtre Paris Saclay, Le Kremlin-Bicêtre, France.