TY  - RPRT
TI  - Cases in electrocardiography.
AU  - T Zimmers
AU  - R C Butler
PY  - 1999
DO  - 10.1016/s0735-6757(99)90209-7
UR  - https://pubmed.ncbi.nlm.nih.gov/10530547/
ID  - 10530547
ER  -