Comparison between the Effects of Dexmedetomidine and Midazolam on Postoperative Cognitive Impairment after Coronary Artery Bypasses Graft Surgery: A Randomized Clinical Trial - Rajaei, Mahsa; Tabari, Masoomeh; soltani, Ghassem; Alizadeh, Kambiz; Nazari, Alireza; Noroozian, Maryam; Morovatdar, Negar (The Research in Heart Yield and Translational Medicine (RHYTHM), 2019)