RT Journal Article SR Electronic T1 Comparison of radiofrequency versus cryothermy catheter ablation of septal accessory pathways JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 1091 OP 1092 DO 10.1136/heart.89.9.1091 VO 89 IS 9 A1 G P Kimman A1 T Szili-Torok A1 D A M J Theuns A1 J C Res A1 M F Scholten A1 L J Jordaens YR 2003 UL http://heart.bmj.com/content/89/9/1091.abstract AB