Quratulain, Bakhtiar Ahmed Bhanbhro, Asif Ali Khuhro, Sonia Saleem, Bismah Memon, Amanullah Lail. “Correlation Between Infantile Vitamin D Insufficiency and the Incidence of Acute Lower Respiratory Tract Infections”. Pakistan Journal of Medical & Health Sciences 17, no. 06 (September 5, 2023): 298. Accessed April 23, 2026. https://mail.pjmhsonline.com/pjmhs/article/view/5133.