TY  - RPRT
TI  - Observer variability in coronary angiography.
AU  - L M Zir
PY  - 1983
DO  - 10.1016/0167-5273(83)90033-5
UR  - https://pubmed.ncbi.nlm.nih.gov/6862700/
ID  - 6862700
ER  -