The Montana Heart Diagnostic Center. A statistical evaluation for the year 1971.
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D003954:Diagnostic Services; D006330:Heart Defects, Congenital / Q000453:epidemiology*; D006331:Heart Diseases / Q000453:epidemiology*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D009009:Montana; D012017:Referral and Consultation; D012214:Rheumatic Heart Disease / Q000453:epidemiology