1. Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
2. Department of Clinical Biochemistry, University Health Network, Toronto, Ontario, Canada
3. Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, Toronto, Ontario, Canada
4. Institute of Clinical Chemistry and Laboratory Medicine and
5. Department of Medicine, University Hospital at the Technical University of Dresden, Dresden, Germany
6. Program in Reproductive and Adult Endocrinology, Eunice Kennedy Shriver NICHD, NIH, Bethesda, MD
7. Centre for Rare Diseases and Personalised Medicine, The Medical School, Institute of Biomedical Research West, University of Birmingham, Edgbaston, Birmingham, UK
8. Division of Endocrinology, Mayo Clinic, Rochester, MN
9. Department of Pathology, Josephine Nefkens Institute, Erasmus MC–University, Medical Center Rotterdam, Rotterdam, the Netherlands