The vitamin D for COVID-19 (VIVID) trial: A pragmatic cluster-randomized design
Titel:
The vitamin D for COVID-19 (VIVID) trial: A pragmatic cluster-randomized design
Auteur:
Wang, Rui DeGruttola, Victor Lei, Quanhong Mayer, Kenneth H. Redline, Susan Hazra, Aditi Mora, Samia Willett, Walter C. Ganmaa, Davaasambuu Manson, JoAnn E.