1. Department of Laboratory Medicine, Endocrine Laboratory, Amsterdam UMC Location University of Amsterdam, Meibergdreef, Amsterdam, The Netherlands
2. Amsterdam Gastroenterology, Endocrinology & Metabolism, Amsterdam, The Netherlands
3. Amsterdam Reproduction & Development, Amsterdam, The Netherlands
4. Department of Laboratory Medicine, Laboratory Specialized Diagnostics & Research, Amsterdam UMC location University of Amsterdam, Meibergdreef, Amsterdam, The Netherlands
5. Amsterdam Public Health, Amsterdam, The Netherlands
6. Department of Laboratory Medicine, Endocrine Laboratory, Amsterdam UMC Location Vrije Universiteit Amsterdam, Boelelaan, Amsterdam, The Netherlands