@misc{indiciaedf97739ce308, title = {Spatial vector changes during ventricular depolarisation using a semi-orthogonal lead system--a study of 190 cases.}, author = {J R Holmes}, year = {1976}, doi = {10.1111/j.2042-3306.1976.tb03275.x}, url = {https://pubmed.ncbi.nlm.nih.gov/1253775/}, note = {Source identifier: 1253775} }