TY  - RPRT
TI  - Evaluation of left ventricular function by echo-apex tracings.
AU  - S Khoór
AU  - E Kékes
AU  - F Szabóki
AU  - E Berentey
PY  - 1990
UR  - https://pubmed.ncbi.nlm.nih.gov/2339583/
ID  - 2339583
ER  -