Study: Vitamin D deficiency found in over 80% of Covid-19 patientshttps://www.ajc.com/life/study-vitamin-d-deficiency-found-in-over-80-of-covid-19-patients/A6W5TCSNIBBLNNUMVVG4XBPTGQ/ by atombender • 6 years ago 5 2 6 years agoAJajc.com