Hota PK, Yellapragada H. Assessment of surgical outcome in emergency gastrointestinal surgeries using P-POSSUM score. Int J Res Med Sci [Internet]. 2017 Jun. 24 [cited 2025 Oct. 27];5(7):3007-11. Available from: https://www.msjonline.org/index.php/ijrms/article/view/3186