title: [Characteristics of congenital morphogenetic variants in hygienic studies].
abstract: The study was undertaken to examine the basic frequencies of congenital morphogenetic variants (CMVs) among preschool children. The basic frequencies were valid if the population frequency was more than 2-4 %. The least valid frequencies were characteristic of rare signs at a frequency of less than 1%. It is suggested that rare signs be integrated into an individual group and then their average be compared.
authors.forename: E N
authors.initials: EN
authors.lastname: Kotysheva
mesh_terms: D002648:Child; D002675:Child, Preschool; D018876:Environmental Illness / Q000453:epidemiology*; D005260:Female; D005787:Gene Frequency; D006801:Humans; D008297:Male; D009024:Morphogenesis / Q000235:genetics*; D012426:Russia / Q000453:epidemiology