TY - RPRT TI - Simulated 2:1 left bundle-branch block. Normalization of the left bundle-branch block pattern by ventricular extrasystoles. AU - L SCHAMROTH AU - E CHESLER PY - 1962 DO - 10.1161/01.cir.25.2.395 UR - https://pubmed.ncbi.nlm.nih.gov/14498017/ ID - 14498017 ER -