TY  - RPRT
TI  - A basis for observer variation in electrocardiographic interpretation.
AU  - C A CACERES
PY  - 1963
DO  - 10.1016/s0033-0620(63)80013-4
UR  - https://pubmed.ncbi.nlm.nih.gov/14017592/
ID  - 14017592
ER  -