Patil, V. A., Mahapatra, B., Panchal, A., & Deolekar, S. (2017). Effectiveness of Mannheim peritonitis index in predicting the morbidity and mortality of patients with hollow viscous perforation. International Journal of Research in Medical Sciences, 5(2), 533–536. https://doi.org/10.18203/2320-6012.ijrms20170146