A
Vitamin D supplementation to prevent acute respiratory tract infections: systematic review and meta-analysis of individual participant data
Martineau AR, et al • BMJ • 2017
Overall ARTI reduction OR 0.88 (95% CI 0.81-0.96); daily/weekly dosing OR 0.81; profound deficiency (<25 nmol/L) + daily dosing OR 0.30 (NNT 4)
Vitamin DImmunityrespiratory health