Ali, Muneera, Mustansir Ali Khan, Razia Sultana, Muhammad Azhar, Nuzhat Yasmeen, and Sadia Riaz. “Effectiveness of Less Invasive Surfactant Administration in Preterm With Respiratory Distress Syndrome”. Annals of Punjab Medical College 17, no. 4 (December 31, 2023): 436-439. Accessed July 27, 2024. https://apmcfmu.com/index.php/apmc/article/view/1260.