Malik, S., A. Singh, D. S. Sidhu, N. Nagpal, and D. Sharma. “A Prospective Study to Assess Clinical Profile and Golden Period for Operative Intervention in Patients With Perforation Peritonitis”. International Surgery Journal, vol. 5, no. 4, Mar. 2018, pp. 1492-8, doi:10.18203/2349-2902.isj20181136.