[Anamnestic and electrocardiographic studies on the incidence of heart diseases in various age groups].
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D004562:Electrocardiography; D005260:Female; D006331:Heart Diseases / Q000453:epidemiology*; D006801:Humans; D008297:Male; D008403:Mass Screening; D008875:Middle Aged; D011044:Poland; D012737:Sex Factors
Badia anamnestyczne i elektrokardiograficzne nad czestościa dolegliwości sercowych w róznych grupach wieku.