448
Participants
Start Date
November 30, 2013
Primary Completion Date
May 31, 2014
Study Completion Date
December 31, 2015
Placebo
placebo capsules have similar appearance and smell as 400 IU vitamin D3 capsules,
Vitamin D3
Vitamin D3 2000 IU per day
Institute for Nutritional Sciecnes, Chinese Acadamy of Sciences, Shanghai
Lead Sponsor
Chinese Academy of Sciences
OTHER_GOV