1. Department of Pediatrics and Adolescent Medicine, Division of Paediatric Pulmology, Allergology and Endocrinology Medical University of Vienna Vienna Austria
2. Vienna Bone and Growth Center Vienna Austria
3. Department of Pediatrics and Adolescent Medicine Medical University of Graz Graz Austria
4. Department of Paediatrics and Adolescent Medicine Sozialmedizinisches Zentrum Süd ‐ Kaiser‐Franz‐Josef‐Spital mit Gottfried von Preyer'schem Kinderspital Vienna Austria
5. Department for Child and Adolescent Psychiatry Medical University of Vienna Vienna Austria