Jose JM, Kumaran JA. Duration of viral clearance and factors associated with viral clearance among COVID-19 patients admitted in a tertiary care center in north Kerala. Int J Community Med Public Health [Internet]. 2022 Mar. 25 [cited 2025 Oct. 28];9(4):1709-14. Available from: https://www.ijcmph.com/index.php/ijcmph/article/view/9370