Gauchan, P, B Lekhak, and JB Sherchand. “The Prevalence of Lower Respiratory Tract Infection in Adults Visiting Tribhuvan University Teaching Hospital”. Journal of Institute of Medicine Nepal 28, no. 2 (October 22, 2007): 10–14. Accessed March 4, 2025. https://nepjol.info./index.php/JIOM/article/view/591.