Ntavoni , G., Vasilopoulos, G., Toylia , G., Linardatou, V., Kadda, O., Stergiannis, P., Myrianthefs, P. and Kalogianni , A. (2025) “Evaluation of the effectiveness of postoperative analgesia after major abdominal surgery”, Health & Research Journal, 11(2), pp. 117–131. doi: 10.12681/healthresj.39935.