[1] Univ Oxford, Nuffield Dept Orthopaed Rheumatol & Musculoskeleta, Oxford, England
[2] McMaster Univ, Michael G DeGroote Sch Med, Hamilton, ON, Canada
[3] Univ Toronto, Temerty Fac Med, Toronto, ON, Canada
[4] Northern Reg Gender Dysphoria Serv, Newcastle, England
[5] Univ Oxford, Dept Psychiat, Oxford, England
[6] Univ Warwick, Warwick Clin Trials Unit, Warwick, England
[7] Stoke Mandeville Hosp, Dept Plast Surg, Buckinghamshire Healthcare NHS Trust, Aylesbury, England