RT Journal Article SR Electronic T1 Aortic and cardiac air emboli in an older woman JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E137 OP E138 DO 10.1503/cmaj.170733 VO 190 IS 5 A1 Melody Ren A1 Anna Zavodni YR 2018 UL http://www.cmaj.ca/content/190/5/E137.abstract AB