TY  - RPRT
TI  - Development in clinical electrocardiography since Einthoven.
AU  - G E BURCH
PY  - 1961
DO  - 10.1016/0002-8703(61)90602-0
UR  - https://pubmed.ncbi.nlm.nih.gov/13688910/
ID  - 13688910
ER  -