[1] USCF, San Francisco, CA USA
[2] Synarc Inc, San Francisco, CA USA
[3] Univ Calif Berkeley, Berkeley, CA USA
[4] ON Diagnost, Berkeley, CA USA
[5] Amgen Inc, Thousand Oaks, CA 91320 USA
[6] Univ British Columbia, Vancouver, BC V5Z 1M9, Canada
[7] United Osteoporosis Ctr, Gainesville, GA USA
[8] Leuven Univ, Leuven, Belgium
[9] Oregon Osteoporosis Ctr, Portland, OR USA