1. Department of Metabolism and Systems Science, College of Medicine and Health University of Birmingham Birmingham UK
2. Department of Endocrinology Queen Elizabeth Hospital Birmingham Birmingham UK
3. Department of Clinical Biochemistry Manchester University NHS Foundation Trust Manchester UK
4. Medical Research Council Laboratory of Medical Sciences London UK
5. Department of Medicine, Androgens in Health and Disease Research Group, Academic Division of Endocrinology Royal College of Surgeons in Ireland (RCSI) Dublin Ireland
6. Section of Investigative Medicine Imperial College London London UK
7. School of Health Sciences, College of Medicine and Health University of Birmingham Birmingham UK
8. Birmingham Women and Children's NHS Healthcare Trust Birmingham UK
9. Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism, University Hospitals Coventry and Warwickshire NHS Trust Coventry UK
10. PCOS Vitality Patient Support Group Belfast UK
11. Department of Endocrinology The London Clinic London UK
12. Birmingham Quality (UK NEQAS), University Hospitals NHS Foundation Trust Birmingham UK
13. Centre for Reproductive Health, Institute for Regeneration and Repair The University of Edinburgh Edinburgh UK
14. Centre for Cardiovascular Science University of Edinburgh Edinburgh UK
15. MRC Human Genetics Unit, Institute of Genetics and Cancer University of Edinburgh Edinburgh UK
16. Department of Metabolism, Digestion & Reproduction Imperial College London London UK
17. Northern Regional Gender Dysphoria Service, Cumbria, Northumberland, Tyne & Wear NHS Foundation Trust Newcastle‐on‐Tyne UK