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Research Article
8 June 2026

Association between the Vitamin D Deficiency and Recurrence of Respiratory Tract Infections in Children

Dr. Gazi Abdul Bari, Dr. Mostafizur Rahman, Dr. Md. Shakibur Rahman, Dr. Farhana Ahammed Nipa, Dr. Rezwana Rahman, Dr. Md. Aktaruzzaman, Dr. Abiduzzaman