(Q69612174)
Statements
Semiquantitative grading of mitral regurgitation by color-coded Doppler echocardiography (English)
S Mohr-Kahaly
R Erbel
G Zenker
M Drexler
N Wittlich
M Schaudig
M Bohlander
M Esser
scientific article published on 01 May 1989