Mukherjee, S., Raza, M.A., Jindal, R. and Ratnakar, R. 2016. A retrospective study of perforation peritonitis in a tertiary care hospital in Uttar Pradesh, India. International Surgery Journal. 3, 4 (Dec. 2016), 2074–2078. DOI:https://doi.org/10.18203/2349-2902.isj20163576.