Yadav, R., C. Agrawal, R. Gupta, S. Rajbansi, A. Bajracharya, and S. Adhikary. “Perforated Duodenal Ulcer in a Young Child: An Uncommon Condition”. Journal of Nepal Medical Association, Vol. 48, no. 174, Apr. 2009, pp. 165-7, doi:10.31729/jnma.237.