TY  - RPRT
TI  - Aortic regurgitation: quantitative methods by echocardiography.
AU  - D L Ekery
AU  - R Davidoff
PY  - 2000
DO  - 10.1111/j.1540-8175.2000.tb01140.x
UR  - https://pubmed.ncbi.nlm.nih.gov/10978997/
ID  - 10978997
ER  -