RT Journal Article SR Electronic T1 Persistent epigastric pain in an 80-year-old man JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 925 OP 928 DO 10.1503/cmaj.101510 VO 183 IS 8 A1 Derek R. MacFadden A1 Todd P. Penner A1 Wayne L. Gold YR 2011 UL http://www.cmaj.ca/content/183/8/925.abstract