2,582
Participants
Start Date
January 31, 2000
Study Completion Date
June 30, 2004
Zinc (12.5 mg/day)
vitamin A 10,000 IU per week
Tufts University School of Medicine, Boston
Corporacion Ecuatoriana de Biotecnologia, Quito
Corporacion Ecuatoriana de Biotecnologia
OTHER
Tufts University
OTHER