TY - RPRT TI - Intermittent left bundle-branch block without obvious heart-disease. AU - D M Krikler AU - D Lefevre PY - 1970 DO - 10.1016/s0140-6736(70)91581-3 UR - https://pubmed.ncbi.nlm.nih.gov/4190181/ ID - 4190181 ER -