RT Journal Article SR Electronic T1 Novel mapping techniques for cardiac electrophysiology JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 575 OP 582 DO 10.1136/heart.87.6.575 VO 87 IS 6 A1 Paul A Friedman YR 2002 UL http://heart.bmj.com/content/87/6/575.abstract AB