chandra, mahesh, Sharma, V., Kohli, S., Yadav, A., Sandill, S., & Sachdeva, H. (2024). Analysis of clinical risk factors in COVID-19 mortality in ICU in various age groups: a retrospective observational study. Anaesthesia, Pain & Intensive Care, 28(2), 278-284. https://doi.org/10.35975/apic.v28i2.2323