TY  - RPRT
TI  - Letter: Variant variant angina pectoris.
AU  - M A Nevins
PY  - 1974
DO  - 10.7326/0003-4819-80-5-673_1
UR  - https://pubmed.ncbi.nlm.nih.gov/4545090/
ID  - 4545090
ER  -