Muhammad, Nawshad, Amir Khan, and Inayat Shah. “Saliva Is a Non-Invasive Body Fluid for Rapid Detection of Coronavirus”. ADVANCES IN BASIC MEDICAL SCIENCES 5, no. 2 (December 31, 2021): 24–25. Accessed April 19, 2024. https://abms.kmu.edu.pk/index.php/abms/article/view/199.