KHAN, S. M.; ZAIN UL ABID; KHAN, S.; AYAZ, S. Comparison of Mean Post-Operative Pain Score with or Without Bupivacaine Infiltration at Incisional Site in Patients Undergoing Midline Laparotomy for Clean and Clean Contaminated Wound: Comparison of Mean Post-Operative Pain Score for Clean and Clean Contaminated Wound. Annals of Punjab Medical College, v. 19, n. 3, p. 231-235, 30 Sep. 2025.