Hypo-vitaminosis D in Patients with Rheumatoid Arthritis, Systemic Lupus Erythematosus and Ankylosing Spondylitis

Mohamed Ismail Abdel Kareem¹, Reem Hamdy A Mohammed^2*, Hanan Sayed M Abozaid³, Mohamed Moneer Rayanv⁴, Abeer Mohamed Mohamed⁵ and Nihal Ahmad Fathi⁶

¹Rheumatology and Rehabiltation, Al-Azhar Faculty of Medicine, Assuit, Egypt

²Rheumatology and Rehabilitation, Kasr Alaini School of Medicine Cairo University Hospital, Cairo, Egypt

³Rheumatology and Rehabilitation, Faculty of Medicine, Sohag University, Egypt

⁴Rheuamtology and Physical Medicine, Al-Azhar faculty of medicine Assuit, Egypt

⁵Clinical Pathology, Faculty of medicine, Sohag University, Egypt

⁶Rheumatology and Rehabiltation, Assuit University, Egypt

^*Corresponding Author: Reem Hamdy A Mohammed, Rheumatology and Rehabilitation Kasr Alaini School of Medicine Cairo University Hospital, Cairo, Egypt, Tel: +20-2-23641088 Email: