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

Serum levels of tumor necrosis factor alpha and interferon alpha in COVID-19 patients and their correlations with disease severity.

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

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

Assessment of Serum Vitamin D and Total Calcium Levels in COVID-‎‎19 Infected Patients and Their Relation to Disease Severity

Interleukin-17: Could it be a key player in COVID-19 infection severity?

CD177, S100A8 and S100A12 as Markers of Severity in COVID- 19 Patients

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

Vitamin D deficiency in critically ill children

Variations in levels of ACE2 and TMPRSS2 receptors among COVID-19