TY - RPRT TI - Physiologic differences in rate-related versus exercise-induced left bundle branch block. AU - H Koito AU - D H Spodick PY - 1988 DO - 10.1016/0002-9149(88)90235-4 UR - https://pubmed.ncbi.nlm.nih.gov/3400612/ ID - 3400612 ER -