RT Journal Article SR Electronic T1 Magnet ingestion by a 3-year-old boy JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 972 OP 974 DO 10.1503/cmaj.121847 VO 185 IS 11 A1 Rosenfield, Daniel A1 Strickland, Matt A1 Fecteau, Annie YR 2013 UL http://www.cmaj.ca/content/185/11/972.abstract AB