[1] Univ Athens, Sch Med, Lab Res Musculoskeletal Syst, Kifisia 14561, Greece
[2] Univ Athens, Sch Med, KAT Gen Hosp, Kifisia 14561, Greece
[3] Univ Athens, Sch Med, Kifisia 14561, Greece
[4] Carol Davila Univ Med & Pharm, Dept Obstet & Gynecol, Bucharest, Romania
[5] Dr I Cantacuzino Hosp, Dept Obstet & Gynecol, Bucharest, Romania
[6] Univ Hosp, Breast Clin, B-9000 Ghent, Belgium
[7] Univ Hosp, Menopause Clin, B-9000 Ghent, Belgium
[8] Istanbul Univ, Cerrahpasa Med Sch, Dept Obstet & Gynecol, TR-34365 Istanbul, Turkey
[9] Univ Zaragoza, Fac Med, Hosp Clin, Dept Obstet & Gynecol, Zaragoza 50009, Spain
[10] Karolinska Inst, Cardiol Unit, Dept Med, SE-17176 Stockholm, Sweden
[11] Karolinska Inst, Head Ctr Gender Med, SE-17176 Stockholm, Sweden
[12] Karolinska Univ Hosp, SE-17176 Stockholm, Sweden
[13] Univ Med Ctr Utrecht, Julius Ctr Hlth Sci & Primary Care, Utrecht, Netherlands
[14] Univ Pisa, Dept Clin & Expt Med, I-56100 Pisa, Italy
[15] Hop Paule de Viguier, Menopause & Metab Bone Dis Unit, F-31059 Toulouse 09, France
[16] John Radcliffe Hosp, Womens Ctr, Oxford OX3 9DU, England
[17] Natl & Capodestrian Univ Athens, Dept Obstet & Gynecol 2, Athens, Greece