@misc{indiciaea7ca12d1375b, title = {Electrocardiographic mirror pattern studies. III. Mirror pattern cancellation in normal and abnormal subjects.}, author = {E SIMONSON and O H SCHMITT and R B LEVINE and J DAHL}, year = {1953}, doi = {10.1016/0002-8703(53)90307-x}, url = {https://pubmed.ncbi.nlm.nih.gov/13040262/}, note = {Source identifier: 13040262} }