TY  - RPRT
TI  - Cross sectional echocardiographic left ventricular ejection fraction: method based variability.
AU  - J C Mohan
AU  - K K Sethi
AU  - R Arora
AU  - M Khalilullah
UR  - https://pubmed.ncbi.nlm.nih.gov/1398691/
ID  - 1398691
ER  -