Transcranial Direct Current Stimulation and EEG-Alpha power in elderly undergoing elective on-pump CABG: Design of a pilot exploratory proof-of-concept trial. PPCR [Internet]. 2016 Nov. 8 [cited 2024 May 3];2(2). Available from: https://journal.ppcr.org/index.php/ppcrjournal/article/view/42