48
Participants
Start Date
August 31, 2013
Primary Completion Date
January 31, 2015
Study Completion Date
January 31, 2015
Cholecalciferol
vitamin D supplementation with either 2,000 IU/day or 4,000 IU/day compared to vitamin D3 supplementation with 200 IU/day.
Children's Hospital of Pittsburgh of UPMC, Pittsburgh
University of Pittsburgh
OTHER