Pokhrel, D., S. Pant, A. Pradhan, and S. Mansoor. “A Comparative Retrospective Study of Poisoning Cases in Central, Zonal and District Hospitals”. Kathmandu University Journal of Science, Engineering and Technology, vol. 4, no. 1, Mar. 2010, pp. 40-48, doi:10.3126/kuset.v4i1.2882.