Evaluating the Potential Effect of Melatonin on the post-Cardiac Surgery Sleep Disorder - Dianatkhah, Mehrnoush; Ghaeli, Padideh; Hajhossein Talasaz, Azita; Karimi, Abbasali; Salehiomran, Abbas; Bina, Peyvand; Jalali, Arash; Ghaffary, Saba; Shahmansouri, Nazila; Vejdani, Shaghayegh (The Research in Heart Yield and Translational Medicine (RHYTHM), 2015)