RT Journal Article SR Electronic T1 Heyde syndrome: gastrointestinal bleeding and aortic stenosis JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 135 OP 138 DO 10.1503/cmaj.150194 VO 188 IS 2 A1 Bartosz Hudzik A1 Krzysztof Wilczek A1 Mariusz Gasior YR 2016 UL http://www.cmaj.ca/content/188/2/135.abstract AB