RT Journal Article SR Electronic T1 Cannon waves in atrioventricular nodal re-entry tachycardia JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E129 OP E129 DO 10.1503/cmaj.112155 VO 185 IS 2 A1 Senguttuvan, Nagendra Boopathy A1 Patil, Nilkanth Chandrakant YR 2013 UL http://www.cmaj.ca/content/185/2/E129.abstract AB