[1] VA Greater Los Angeles Healthcare Syst, Geriatr Res Educ & Clin Ctr, Los Angeles, CA USA
[2] UCLA Fielding Sch Publ Hlth, Los Angeles, CA USA
[3] Univ Calif Los Angeles, David Geffen Sch Med, Div Gen Internal Med, Los Angeles, CA 90095 USA
[4] Univ Calif Los Angeles, David Geffen Sch Med, Div Geriatr, Los Angeles, CA 90095 USA
[5] Univ Wisconsin, Osteoporosis Clin Ctr, Madison, WI USA
[6] Univ Wisconsin, Res Program, Madison, WI USA