RT Journal Article SR Electronic T1 Fracture of a pacemaker lead JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association DO 10.1503/cmaj.082092 A1 Chang, Shu-Hsuan A1 Tan, Che-Kim A1 Lee, Shih-Huang YR 2009 UL http://www.cmaj.ca/content/early/2009/08/31/cmaj.082092.abstract AB