[1] Univ Penn, Perelman Sch Med, Div Endocrinol Diabet & Metab, Philadelphia, PA 19104 USA
[2] Univ Michigan, Dept Pharmacol & Internal Med, Div Metab & Endocrinol Diabet, Ann Arbor, MI 48109 USA
[3] LTC Charles S Kettles Vet Affairs Med Ctr, Med Serv, Endocrinol & Metab Sect, Ann Arbor, MI 48015 USA
[4] Amer Univ Beirut, WHO Collaborating Ctr Metab Bone Disorders, Dept Internal Med, Div Endocrinol,Calcium Metab & Osteoporosis Progra, Beirut 11072020, Lebanon
[5] Univ Sydney, ANZAC Res Inst, Sydney, NSW 2139, Australia
[6] Concord Repatriat Gen Hosp, Androl Dept, Sydney, NSW 2139, Australia
[7] Johns Hopkins Univ, Sch Med, Div Endocrinol Diabet & Metab, Baltimore, MD 21287 USA
[8] Oregon Osteoporosis Ctr, Portland, OR 97213 USA
[9] Australian Catholic Univ, Mary MacKillop Inst Hlth Res, Melbourne, Vic 3000, Australia
[10] Univ Calif San Diego, Sch Med, Dept Med, La Jolla, CA 92093 USA
[11] Univ Virginia, Div Endocrinol & Metab, Charlottesville, VA 22903 USA
[12] Brigham & Womens Hosp, Div Endocrinol Diabet & Hypertens, Boston, MA 02115 USA
[13] Georgetown Univ, Med Ctr, Div Endocrinol & Metab, Washington, DC 20057 USA
[14] Univ Penn, Perelman Sch Med, Div Diabet Endocrinol & Metab, 3400 Civ Ctr Blvd,Bldg 521, Philadelphia, PA 19041 USA