Assessment of Serum Vitamin D Level in Patients with COVID-19 Infection

Vitamin D Level in Patients with COVID-19 and Its Relationship with Severity of The Clinical Course

A Comprehensive Analysis and Assessment of Vitamin D with Inflammatory Biomarkers Levels Among Acute COVID-19 Infected Patients

Vitamin D Level and Severity of COVID-19 Patients in North Sinai Governorate, A Clinical Prospective Study

Serum vitamin D and vitamin D receptor (VDR) polymorphisms (<i>FokI</i> and <i>TaqI</i>) as predictors of COVID19 severity. ( Prospective study in a cohort of Egyptian COVID-19 p

Effect of Rapid Correction of Serum Cholecalciferol Deficiency on Protection against Clinical Manifest COVID-19 Infection

Evaluation of Some Biochemical and Hematological Parameters in COVID-19 Patients and its Relation to Severity

Vitamin D as a laboratory predictor of mortality in COVID-19 patients admitted in intensive care

Knowledge, Practices and Attitudes Regarding Vitamin D Insufficiency among Health Care Workers' Women with COVID-19

Impact of Rapid Correction of Vitamin D Deficiency on Patients with COVID-19 Disease: A Randomized-Controlled Trial