28,220
Participants
Start Date
November 30, 1997
Primary Completion Date
May 31, 2001
Study Completion Date
December 31, 2020
Vitamin A (retinyl palmitate)
McGill University Health Centre/Research Institute of the McGill University Health Centre
OTHER
University of Zimbabwe
OTHER
Harare City Health Department, Harare, Zimbabwe
UNKNOWN
United States Agency for International Development (USAID)
FED
Bill and Melinda Gates Foundation
OTHER
Rockefeller Foundation
OTHER
BASF
INDUSTRY
SARA and Linkages Projects, Academy for Educational Development, Washington DC.
UNKNOWN
Université de Montréal
OTHER
Johns Hopkins Bloomberg School of Public Health
OTHER