Digital processing of phonocardiograms: first results.
D000703:Analog-Digital Conversion; D001021:Aortic Valve; D001024:Aortic Valve Stenosis / Q000175:diagnosis; D002312:Cardiomyopathy, Hypertrophic / Q000175:diagnosis; D003201:Computers; D003937:Diagnosis, Differential; D001330:Electronic Data Processing; D005163:Factor Analysis, Statistical; D006331:Heart Diseases / Q000175:diagnosis*; D006801:Humans; D010701:Phonocardiography