TY - JOUR T1 - Comparison of tramadol, tramadol-metamizol and tramadol-lornoxicam administered by intravenous PCA in management of postoperative pain AU - Özçakır Kemal, Sibel AU - Şahin, Şaziye AU - Apan, Alparslan Y1 - 2007 PY - 2007 DA - 2007 N1 - doi: DO - T2 - Agri JF - Agri JO - Ağrı SP - 24 EP - 31 VL - 19 IS - 4 SN - M3 - PMID: 18159576 UR - https://dx.doi.org/ Y2 - 2007 ER -