[Practical value of the cardiogram].
D001024:Aortic Valve Stenosis / Q000175:diagnosis*; D002648:Child; D002675:Child, Preschool; D004562:Electrocardiography; D006801:Humans; D008944:Mitral Valve Insufficiency / Q000175:diagnosis*; D008946:Mitral Valve Stenosis / Q000175:diagnosis*
A kardiogramm gyakorlati értéke.