Pre-infection 25-hydroxyvitamin D3 levels and association with severity of COVID-19 illnessAmiel A. Dror(Bar-Ilan University), Eyal Sela(Bar-Ilan University)medRxivJune 7, 202110.1101/2021.06.04.21258358Cited by 8SaveCiteExport RISWatch citationsRelated PapersPre-infection 25-hydroxyvitamin D3 levels and association with severity of COVID-19 illness|PLoS ONE|2022|87