Mahmood Ahmad, Muhammad Ayub, Fawad Iqbal Janjua, Aisha Majeed, Nooman Gilani and Nahdia Zaman , Muhammad Ataur Rehman , Sumbal Shehzadi , Uzma Abid , Maryam Amjad , Sonia Fazal , N. Z. , M. A. R. , S. S. , U. A. , M. A. , S. F. . (2020) “Frequency of Cystic Fibrosis in Children with Recurrent Respiratory Infections by Sweat Chloride Testing: A Hospital-Based Cross-sectional Study”, Journal of Rawalpindi Medical College, 26(2-S1). doi: 10.37939/jrmc.v24i4.1229.