[1] Univ Cambridge, Sch Clin Med, Dept Med, Cambridge, England
[2] Univ Cincinnati, Bone Hlth & Osteoporosis Ctr, Cincinnati, OH USA
[3] Univ Lyon, Dept Orthopaed & Rheumatol, Lyon, France
[4] Univ Southampton, MRC, Lifecourse Epidemiol Unit, Southampton, Hants, England
[5] Katholieke Univ Leuven, Leuven Univ Ctr Metab Bone Dis, Louvain, Belgium
[6] Univ Pittsburgh, Pittsburgh, PA USA
[7] Alfried Krupp Hosp, Dept Internal Med, Essen, Germany
[8] Cedars Sinai Med Ctr, Los Angeles, CA 90048 USA
[9] Autonomous Univ Barcelona, Hop Mar IMIM, Barcelona, Spain
[10] Columbia Univ, Reg Bone Ctr, New York, NY USA
[11] Univ Alabama Birmingham, Div Clin Immunol & Rheumatol, Birmingham, AL 35294 USA
[12] VU Univ Ctr, Dept Endocrinol, Amsterdam, Netherlands
[13] Univ Massachusetts, Sch Med, Ctr Outcomes Res, Worcester, MA USA
[14] McMaster Univ, St Josephs Healthcare, Hamilton, ON L8S 4L8, Canada
[15] Univ Verona, Dept Rheumatol, I-37100 Verona, Italy
[16] Seattle Univ, Fred Hutchinson Canc Res Ctr, Seattle, WA 98122 USA
[17] Paris Descartes Univ, Cochin Hosp, Paris, France
[18] Univ Sydney, Dept Rheumatol, Sydney, NSW 2006, Australia
[19] Columbia Univ, Dept Med, Med Ctr, New York, NY USA