Mahato, I., R. Bhandari, R. Rajbhandari, S. Kumari, and A. Yadav. “Sensitivity and Specificity of Clinical Features Used in Alvarado Scoring System”. Health Renaissance, vol. 9, no. 1, Mar. 2011, pp. 12-14, doi:10.3126/hren.v9i1.4355.