Sikandar Hayat Khan, Sabeen Khursheed Zaidi, and Mehreen Gilani. “PCR to CRISPR: Role of Nucleic Acid Tests (NAT) in Detection of COVID-19”. Journal of the Pakistan Medical Association 72, no. 6 (February 12, 2022): 1166–1174. Accessed May 26, 2026. https://jpma.org.pk/index.php/public_html/article/view/2324.