TY  - RPRT
TI  - Echocardiogram in mitral regurgitation.
AU  - I C Schulman
PY  - 1980
DO  - 10.1016/0002-9149(80)91101-7
UR  - https://pubmed.ncbi.nlm.nih.gov/7355749/
ID  - 7355749
ER  -