Tabari,M , , Alipour,M , , Asadpour,A , , Mogharabian,N , and Amini,S . "A Comparison Between Intravenous Acetaminophen (Paracetamol) and Intravenous Meperidine in Postoperative Pain Reduction of Patients Undergoing Appendectomy" .e1185181 , Razavi Journal of Medicine, 2, 1, 2014, e1185181. doi: 10.30483/RIJM.2018.80