TY - RPRT TI - Defibrillation efficacy using two low-profile endocardial electrodes. AU - I Singer AU - C Maldonado AU - F Vance AU - P Simpson AU - J Kupersmith PY - 1991 DO - 10.1097/00000441-199108000-00003 UR - https://pubmed.ncbi.nlm.nih.gov/1897562/ ID - 1897562 ER -