A. Normandale

Effect of a test-and-treat approach to vitamin D supplementation on risk of all cause acute respiratory tract infection and covid-19: phase 3 randomised controlled trial (CORONAVIT)

David A. Jolliffe, J. Norrie, M. Talaei, 2022, BMJ.

Vitamin D Supplements for Prevention of Covid-19 or other Acute Respiratory Infections: a Phase 3 Randomized Controlled Trial (CORONAVIT)

P. Pfeffer, C. Relton, S. Faustini, 2022, medRxiv.