[1] Univ Lausanne Hosp, Ctr Bone Dis, Dept Bone & Joint, CH-1011 Lausanne, Switzerland
[2] Univ Sheffield, WHO Collaborating Ctr Metab Bone Dis, Sheffield S10 2TN, S Yorkshire, England
[3] Univ Miami, Miller Sch Med, Div Endocrinol, Coral Gables, FL 33124 USA
[4] Columbia Univ Coll Phys & Surg, New York, NY 10032 USA
[5] Univ Wisconsin, Osteoporosis Clin Res Program, Madison, WI USA
[6] Univ Pittsburgh, Grad Sch Publ Hlth, Dept Epidemiol, Pittsburgh, PA USA
[7] Univ Cambridge, Sch Clin Med, Cambridge, England
[8] Univ Southampton, MRC Lifecourse Epidemiol Unit, Southampton SO9 5NH, Hants, England
[9] Univ Oxford, Inst Musculoskeletal Sci, NIHR Musculoskeletal Biomed Res Unit, Oxford OX1 2JD, England
[10] Tufts Univ, Human Nutr Res Ctr Aging, Jean Mayer United States Dept Agr, Boston, MA 02111 USA
[11] Amer Univ Beirut, WHO Collaborating Ctr Metab Bone Disorders, Beirut, Lebanon
[12] Univ Manitoba, Winnipeg, MB, Canada
[13] Univ New Mexico, Sch Med, New Mexico Clin Res & Osteoporosis Ctr, Albuquerque, NM 87131 USA
[14] St Barnabas Osteoporosis & Metab Bone Dis Ctr, Livingston, NJ USA
[15] No Gen Hosp, Ctr Biomed Res, NIHR Bone Biomed Res Unit, Sheffield S5 7AU, S Yorkshire, England
[16] Leiden Univ, Med Ctr, Dept Endocrinol & Metab Dis, Leiden, Netherlands
[17] Carol Davila Univ Med & Pharm, Dept Endocrinol, Bucharest, Romania
[18] Univ Hosp Geneva, Dept Rehabil & Geriatr, Div Bone Dis, Geneva, Switzerland
[19] Fac Med, Geneva, Switzerland