22
Participants
Start Date
January 31, 2013
Primary Completion Date
May 31, 2016
Study Completion Date
May 31, 2016
Vitamin D3
Vitamin D3, 2.100 IU/d p.o.
Placebo
Placebo Tbl. p.o.
University Hospital Zurich, Gastroenterology and Hepatology, Zurich
Kantonsspital St. Gallen, Sankt Gallen
University of Zurich
OTHER