Chaudhary, S., P. Khatri, and S. Shrestha. “Effectiveness of Flexible Endoscopy in the Management of Upper Gastrointestinal Tract Foreign Bodies at a Tertiary Hospital of Western Nepal”. Journal of Chitwan Medical College, vol. 10, no. 1, Mar. 2020, pp. 3-7, https://nepjol.info./index.php/JCMC/article/view/28060.