TY  - RPRT
TI  - The work electrocardiogram.
AU  - A GRAYBIEL
AU  - N W ALLEBACH
PY  - 1959
DO  - 10.1016/0002-9149(59)90363-7
UR  - https://pubmed.ncbi.nlm.nih.gov/13636994/
ID  - 13636994
ER  -