TY - RPRT TI - Aortic leaflet perforation during radiofrequency ablation. AU - M J Seifert AU - F Morady AU - H G Calkins AU - J J Langberg PY - 1991 DO - 10.1111/j.1540-8159.1991.tb02732.x UR - https://pubmed.ncbi.nlm.nih.gov/1721146/ ID - 1721146 ER -