TY  - RPRT
TI  - Prolonged left ventricular ejection time in the post-premature beat. A sensitive sign of idiopathic hypertrophic subaortic stenosis.
AU  - C W White
AU  - T J Zimmerman
PY  - 1975
DO  - 10.1161/01.cir.52.2.306
UR  - https://pubmed.ncbi.nlm.nih.gov/50155/
ID  - 50155
ER  -