TY - RPRT TI - Surface electrocardiography: can arrhythmia circuits be localized? AU - D M Cassidy AU - M E Cain PY - 1989 DO - 10.1016/0735-1097(89)90233-7 UR - https://pubmed.ncbi.nlm.nih.gov/2926042/ ID - 2926042 ER -