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

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

Predictors of Mortality for Patients with Severe COVID-19 Admitted to the Intensive Care Unit

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

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

Vitamin D deficiency in critically ill children

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

VITAMIN D STATUS OF PEDIATRIC INTENSIVE CARE UNIT PATIENTS WITH PNUMONIA

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

The prognostic value of serum 25-hydroxyvitamin D level in patients with ST-segment elevation myocardial infarction