TY - RPRT TI - The spatial vectorcardiogram and ventricular gradient in left bundle branch block with autopsy studies. AU - G E BURCH AU - N DEPASQUALE PY - 1961 DO - 10.1097/00007611-196111000-00004 UR - https://pubmed.ncbi.nlm.nih.gov/13874702/ ID - 13874702 ER -