TY  - RPRT
TI  - The study of left ventricular function by M-mode echocardiography.
AU  - D G Gibson
PY  - 1979
DO  - 10.1111/j.0954-6820.1979.tb01091.x
UR  - https://pubmed.ncbi.nlm.nih.gov/286524/
ID  - 286524
ER  -