1. Department of Pediatric Endocrinology, Emma Children's Hospital, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands.
2. Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands.
3. Medical Library, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands.
4. Department of Human Genetics, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands.
5. Endocrine Laboratory, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands.
6. Endocrine Laboratory, Amsterdam University Medical Centers, VU University, Amsterdam, The Netherlands.