[Research on the diagnostic value of the esophageal phonocardiogram in mitral diseases].
D002908:Chronic Disease; D004194:Disease; D006331:Heart Diseases; D006349:Heart Valve Diseases; D006801:Humans; D008943:Mitral Valve; D010701:Phonocardiography; D012214:Rheumatic Heart Disease
MITRAL VALVE/diseases; PHONOCARDIOGRAPHY