158
Participants
Start Date
April 10, 2015
Primary Completion Date
June 26, 2019
Study Completion Date
June 26, 2019
Vitamin D
Colecalciferol 16.800 IU per week
Placebo
Leiden University Medical Center, Leiden
Radboud University Medical Center, Nijmegen
Leiden University Medical Center
OTHER
Radboud University Medical Center
OTHER
Amsterdam UMC, location VUmc
OTHER