Vitamin D supplementation to prevent acute respiratory infections :   a systematic review and meta-analysis of aggregate data from randomised controlled trials / 
David A Jolliffe [and forty others] 
<br/><br/>Lancet Diabetes Endocrinol, (Published Online March 30, 2021)<br/> DOI: 10.1101/2020.07.14.20152728 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Vitamin D<br/>Vitamin D Response Element<br/>Coronavirus Infections<br/>Respiratory Tract Infections<br/>Systematic Review