TY  - RPRT
TI  - A revised code for pacemaker identification. Pacemaker Study Group.
AU  - V Parsonnet
AU  - S Furman
AU  - N P Smyth
PY  - 1981
UR  - https://pubmed.ncbi.nlm.nih.gov/7237727/
ID  - 7237727
ER  -