1,300
Participants
Start Date
December 31, 2014
Primary Completion Date
May 31, 2016
Study Completion Date
May 31, 2016
vitamin D supplements
Participants will receive 7mls of D-drops (14,000U/week of vitamin D)
placebo
7mls of placebo drops per week for 8 months.
National Institute of Hygiene and Epidemiology, Hanoi
McMaster University
OTHER