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

Estimation Of Serum Levels Of Vitamin D, Calcium, Phosphorous, Matrix Metalloproteinases 1, 2 And Tissue Inhibitor Matrix Metalloproteinase -1 In Patients With Acrofacial Vitiligo During COVID-19

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

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

Study of Indices Comprising Surrogate Markers of Vitamin D Deficiency

Assessment of Vitamin D Status In Patients With Essential Hypertension