ea0073aep424 | General Endocrinology | ECE2021
Kazemijahromi Mitra
, Samimagham HamidReza
, Azad Mehdi Hassani
, Arabi Mohsen
, Hooshyar Dariush
Background and objectiveThere are few studies showing the association between vitamin D deficiency and COVID-19 severity and mortality. This study designed to investigate the relationship between vitamin D deficiency and the severity and mortality of COVID-19.MethodsThe present cross-sectional study was conducted on 48 COVID-19 patients with positive PCR test results. Patients were divided into three groups a...