[1] Univ Alabama Birmingham, Dept Phys Med & Rehabil, Birmingham, AL 35233 USA
[2] Univ Alabama Birmingham, Div Gerontol, Dept Med, Integrat Ctr Aging Res, Birmingham, AL USA
[3] Wayne State Univ, Dept Psychol, Detroit, MI 48202 USA
[4] Moss Rehab Elkins Pk Einstein Healthcare Network, Dept Phys Med & Rehabil, Elkins Pk, PA USA
[5] Craig Hosp, Res Dept, Englewood, CO USA
[6] Univ Alabama Birmingham, Dept Ophthalmol, Birmingham, AL USA
[7] Mayo Clin, Dept Phys Med & Rehabil, Rochester, MN USA
[8] Univ Washington, Dept Phys Med & Rehabil, Seattle, WA USA
[9] JFK Rehabil Inst, Dept Phys Med & Rehabil, Edison, NJ USA
[10] Virginia Commonwealth Univ, Dept Phys Med & Rehabil, Richmond, VA USA