204
Participants
Start Date
July 31, 2012
Primary Completion Date
September 30, 2015
Study Completion Date
September 30, 2015
Vitamin D2
Treatment with Vit D2.
1,25(OH)2 Vit D3
Treatment with 1,25(OH)2 Vitamin D3(Rocaltrol).
Beijing Friedship Hospital, Beijing
Beijing Municipal Science & Technology Commission
OTHER
Dongliang Zhang, MD
OTHER