TY  - RPRT
TI  - A coding system for cardiac arrhythmias.
AU  - L Schamroth
AU  - H D Friedberg
PY  - 1970
DO  - 10.1016/s0022-0736(70)80010-3
UR  - https://pubmed.ncbi.nlm.nih.gov/4102821/
ID  - 4102821
ER  -