RT Journal Article SR Electronic T1 Syncope confusion JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 521 OP 521 DO 10.1503/cmaj.115-0031 VO 187 IS 7 A1 Christine Soong A1 Benjamin H. Chen YR 2015 UL http://www.cmaj.ca/content/187/7/521.2.abstract