TY  - RPRT
TI  - Provocative testing for coronary arterial spasm: risk, method and rationale.
AU  - F A Heupler
PY  - 1980
DO  - 10.1016/0002-9149(80)90081-8
UR  - https://pubmed.ncbi.nlm.nih.gov/7405847/
ID  - 7405847
ER  -