Prohaska Thomas R, Anderson Lynda A, Hooker Steven P, Hughes Susan L, Belza Basia
Institute for Health Research and Policy (MC 275), University of Illinois at Chicago, 1747 West Roosevelt Road, Chicago, IL 60608, USA.
J Aging Res. 2011;2011:392751. doi: 10.4061/2011/392751. Epub 2011 Aug 15.