RT Journal Article SR Electronic T1 Percutaneous left atrial appendage closure for managing thromboembolic risk in atrial fibrillation JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E1227 OP E1230 DO 10.1503/cmaj.180470 VO 190 IS 41 A1 Faizan Khan A1 F. Daniel Ramirez A1 Benjamin Hibbert YR 2018 UL http://www.cmaj.ca/content/190/41/E1227.abstract