SCREENING CHILDREN FOR HEART DISEASE WITH A PORTABLE TAPE RECORDER.
D000293:Adolescent; D002648:Child; D006306:Health Surveys; D006326:Heart Auscultation; D006331:Heart Diseases; D006801:Humans; D008403:Mass Screening; D010414:Pennsylvania; D012572:School Health Services; D013637:Tape Recording
ADOLESCENCE; CHILD; HEALTH SURVEYS; HEART AUSCULTATION; HEART DISEASES; MASS SCREENING; PENNSYLVANIA; SCHOOL HEALTH; TAPE RECORDING