L., M., Rai, R., V., A. and Krishna, A.V. 2021. Comparison of modified Alvarado and RIPASA scoring systems correlated with intra-operative findings in predicting acute appendicitis. International Surgery Journal. 8, 9 (Aug. 2021), 2662–2668. DOI:https://doi.org/10.18203/2349-2902.isj20213593.