Talakoub,R. , , Hirmanpour,A. , , Gholamzadeh,T. , and Jalilianfar,P. . "The Effect of Ketamine and Dexamethasone on Frequency and Intensity of Fentanyl-Induced Cough", Journal of Isfahan Medical School, 36, 468, 2018, 104-110. doi: 10.22122/jims.v36i468.8786