Saraswathy, A. S., Sanya, R., & Kumaran, J. A. (2021). Incubation period of COVID-19: analysis of COVID-19 cases admitted in a tertiary care center, northern district of Kerala, India. International Journal Of Community Medicine And Public Health, 8(5), 2451–2454. https://doi.org/10.18203/2394-6040.ijcmph20211772