4,185
Participants
Start Date
January 31, 2003
Primary Completion Date
December 31, 2020
Study Completion Date
December 31, 2020
University of Alabama at Birmingham, Birmingham
University of Iowa, Iowa City
Boston University School of Medicine, Boston
University of Iowa
OTHER
University of Alabama at Birmingham
OTHER
Boston University
OTHER
National Institute on Aging (NIA)
NIH
University of California, San Francisco
OTHER