Muhammad Idrees, Iram Shahzadi, Maryam Sultana, Hasnain Ameer Hamza (2023) “Comparison of Tramadol Infusion Versus Tramadol Boluses for Postoperative Pain in Patients Undergoing Lower Abdominal Surgeries”, Pakistan Journal of Medical & Health Sciences, 17(02), p. 577. doi: 10.53350/pjmhs2023172577.