chandra, mahesh, Vibhuti Sharma, Santvana Kohli, Ankita Yadav, Surabhi Sandill, and Harish Sachdeva. “Analysis of Clinical Risk Factors in COVID-19 Mortality in ICU in Various Age Groups: A Retrospective Observational Study”. Anaesthesia, Pain & Intensive Care 28, no. 2 (April 17, 2024): 278-284. Accessed May 18, 2024. https://www.apicareonline.com/index.php/APIC/article/view/2323.