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

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

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

Assessment of Serum Concentrations of Vitamin D in Young Male Patients with Tuberculosis

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

Assessment of Serum Level of 25-Hydroxy Vitamin D in Patients with Acne Vulgaris

Assessment of Vitamin D Status In Patients With Essential Hypertension

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

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