220
Participants
Start Date
January 26, 2021
Primary Completion Date
December 31, 2024
Study Completion Date
December 31, 2026
Vitamin D
Vitamin D supplementation
Placebo
Placebo tablets with the same external appearance
RECRUITING
Kwong Wah Hospital, Hong Kong
NOT_YET_RECRUITING
Princess Margaret Hospital, Hong Kong
RECRUITING
Queen Mary Hospital, University of Hong Kong, Hong Kong
Kwong Wah Hospital
OTHER
Princess Margaret Hospital, Hong Kong
OTHER_GOV
Pamela Youde Nethersole Eastern Hospital
OTHER
The Queen Elizabeth Hospital
OTHER
The University of Hong Kong
OTHER