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Vitamin D Deficiency: Causes, Symptoms & Treatment
Recognition and Management of Vitamin D Deficiency | AAFP
Vitamin D deficiency in adults: Definition, clinical ... - UpToDate
Vitamin D - Mayo Clinic
Vitamin D Deficiency > Fact Sheets - Yale Medicine
Patient education: Vitamin D deficiency (Beyond the Basics)
Vitamin D Deficiency: Symptoms, Treatments, and Causes
Vitamin D Deficiency: Causes, Symptoms & Health Risks - WebMD
Vitamin D for the Prevention of Disease | Endocrine Society
Vitamin D deficiency - Symptoms, diagnosis and treatment