title: [Epidemics of congenital heart defects in the Kladno district in 1972].
mesh_terms: D003604:Czechoslovakia; D005260:Female; D006330:Heart Defects, Congenital / Q000453:epidemiology* / Q000209:etiology; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D011247:Pregnancy; D012189:Retrospective Studies
vernacular_title: Epidemie vrozených srdecních vad na kladenském okrese v roce 1972