Prof. Saira Afzal, Khunsa Junaid, and Faiza Aziz. “A Hospital-Acquired Infection: A Public Health Problem”. Annals of King Edward Medical University 27, no. 2 (April 9, 2021). Accessed May 19, 2022. https://www.annalskemu.org/journal/index.php/annals/article/view/4440.