Ejaz Ahmed Khan. “Second Wave of COVID-19 Pandemic in Pakistan; Reasons and Mitigation Measures”. Journal of Ayub Medical College Abbottabad 32, no. 4-Sup 1 (January 22, 2021): 593–594. Accessed May 3, 2025. https://www.jamc.ayubmed.edu.pk/index.php/jamc/article/view/9027.