807
Participants
Start Date
January 31, 1996
Primary Completion Date
July 31, 1997
Study Completion Date
July 31, 1999
Vitamin A
5,000 IU (0.1 ml) was given on Mondays, Wednesdays, and Fridays for four weeks.
Sham Procedure
Control infants received a sham procedure rather than placebo injections.
George Washington University, Washington D.C.
Emory University, Atlanta
University of Miami, Miami
University of Tennessee, Memphis
Case Western Reserve University, Rainbow Babies and Children's Hospital, Cleveland
Cincinnati Children's Medical Center, Cincinnati
Indiana University, Indianapolis
University of Texas Southwestern Medical Center at Dallas, Dallas
Stanford University, Palo Alto
Yale University, New Haven
Brown University, Women & Infants Hospital of Rhode Island, Providence
National Center for Research Resources (NCRR)
NIH
NICHD Neonatal Research Network
NETWORK