@misc{indiciaeab514b4107f5, title = {A spatial vector analyzer for the conventional electrocardiogram.}, author = {E SIMONSON}, year = {1953}, doi = {10.1161/01.cir.7.3.403}, url = {https://pubmed.ncbi.nlm.nih.gov/13033069/}, note = {Source identifier: 13033069} }