Khadija Muneer, Saima Ayub, Nauman Zafar, Noma Sarwar, Adnan Hasham, Shazia Siddique. Comparison of Clinical and Laboratory Features in RT-PCR Positive and RT-PCR Negative Covid-19 Patients Admitted in High Dependency Unit in a Tertiary Care Hospital, SGRH, Lahore. Pakistan Journal of Medical & Health Sciences [Internet]. 2022 Apr. 12 [cited 2024 Nov. 21];16(03):289. Available from: https://mail.pjmhsonline.com/index.php/pjmhs/article/view/431