Thomas, Vadakkan Devassy, Binila Jose, and Davis Kizhakkepeedika Rennis. 2018. “Prevalence of Type and Etiology of Lung Cancer Among the Patients Presented to a Tertiary Care Hospital at Central Kerala: A Descriptive Study”. International Journal of Research in Medical Sciences 6 (3):834-37. https://doi.org/10.18203/2320-6012.ijrms20180599.