title: [Etiology and incidence of tetralogy of Fallot].
mesh_terms: D001722:Birth Order; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D008423:Maternal Age; D008431:Maternal-Fetal Exchange; D011247:Pregnancy; D011249:Pregnancy Complications, Cardiovascular; D011251:Pregnancy Complications, Infectious; D012737:Sex Factors; D013771:Tetralogy of Fallot / Q000453:epidemiology / Q000209:etiology* / Q000235:genetics
vernacular_title: K voprosu ob etiologii i chastote tetrady Fallo.