100
Participants
Start Date
June 15, 2021
Primary Completion Date
May 1, 2022
Study Completion Date
December 1, 2022
vitamin D2 ( calciferol )
add on vitamin D2( calciferol ) 40,000 IU/wk ( 2 cap) for 12 weeks
Placebo
add on placebo ( 2 cap ) for 12 weeks
Rajavithi Hospital, Bangkok
Department of Medical Services Ministry of Public Health of Thailand
OTHER_GOV