[1] Univ Hosp Geneva, Geneva, Switzerland
[2] Univ Calif San Francisco, San Francisco, CA 94143 USA
[3] No Calif Inst Bone Hlth, Oakland, CA USA
[4] Univ Aberdeen, Aberdeen, Scotland
[5] Guys Hosp, London SE1 9RT, England
[6] James Cook Univ Hosp, Middlesbrough, England
[7] Synarc Inc, San Francisco, CA USA
[8] Univ Marburg, Marburg, Germany
[9] Saitama Med Sch, Moroyama, Saitama 35004, Japan
[10] New Mexico Clin Res & Osteoporosis Ctr, Albuquerque, NM USA