1.
Saeed S, Rajani R. The association of pre-existing comorbid conditions with COVID-19 severity and post-COVID complications; insights from South Asia: Pre-existing comorbid conditions and COVID-19. Pak J Med Sci [Internet]. 2022Jan.14 [cited 2022Jan.24];38(3). Available from: https://pjms.org.pk/index.php/pjms/article/view/5719