Vitamin D status and seroconversion for COVID-19 in UK healthcare workers.
creator: David R. Thickett, Adrian M Shields, Aduragbemi A Faniyi, Sebastian T Lugg, Sian E Faustini, Craig Webster, Joanne E Duffy, Martin Hewison, Peter Nightingale, Alex G Richter
source: The European respiratory journal
date: 2021