title: Trial of computerized heart disease screening system of phono- and elctrocardiogram in school children.
mesh_terms: D000293:Adolescent; D003201:Computers; D004562:Electrocardiography; D006331:Heart Diseases / Q000517:prevention & control*; D006801:Humans; D008403:Mass Screening / Q000379:methods*; D010701:Phonocardiography