133
Participants
Start Date
June 30, 1996
Primary Completion Date
September 30, 1996
Study Completion Date
September 30, 1996
Folic Acid
100 mcg, 400 mcg, 1000 mcg, or 2000 mcg of folic acid once a day for 6 weeks
Placebo Folic Acid
Placebo folic acid once a day for 6 weeks
Johns Hopkins University
OTHER
National Center for Research Resources (NCRR)
NIH
National Heart, Lung, and Blood Institute (NHLBI)
NIH