Athar, Muhammad Hammad, Usama Bin Zubair, Muhammad Shahbaz Shoaib, Hamza Bin Zubair, Muhammad Yasir, Muhammad Imran, and Nadeem Zia. “Getting Negative for COVID-19: Role of Ethnicity and Demographic Factors”. Pakistan Armed Forces Medical Journal 72, no. 5 (November 4, 2022): 1649–52. Accessed May 27, 2024. https://pafmj.org/PAFMJ/article/view/6273.