TY - JOUR TI - Comparison Effect of Local Subcutaneous Tramadol and Methadone in Post-laparotomy Pain Control AU - Montazer, M. AU - Hojjati, M. AU - Mousavi Toomatari, S.E. JO - Journal of Clinical Practice and Research PY - 2021 VL - 43 SP - 43 EP - 46 DO - 10.14744/etd.2020.53503 ER -