[1] Univ Cambridge, Addenbrookes Hosp, Sch Clin Med, Cambridge, England
[2] Univ Surrey, Fac Hlth & Med Sci, Guildford, Surrey, England
[3] Univ Cambridge, Addenbrookes Hosp, Inst Metab Sci, MRC,Metab Dis Unit,Metab Res Labs,Wellcome Trust, Cambridge, England
[4] Addenbrookes Hosp, Div Gynaecol Oncol, Dept Gynaecol, Cambridge, England