2,093
Participants
Start Date
December 28, 2020
Primary Completion Date
February 15, 2025
Study Completion Date
February 15, 2025
Vitamin D 400IU
Low dose vitamin D (400 IU/day)
Vitamin D 4000IU
Moderate dose vitamin D (4000 IU/day)
University of Chicago, Chicago
Cures Within Reach
OTHER
University of Chicago
OTHER