Nepal, M.; Paudel, R.; Poudel, R.; Gautam, N. Analgesic Efficacy and Tolerability of Tramadol Versus Low Dose Tramadol-Paracetamol in Patients With Gastro Intestinal Surgery. J Univ Coll Med Sci 2019, 7 (2), 39-45. https://doi.org/10.3126/jucms.v7i2.27136.