title: Mongolism: the effect of trends in age at childbirth on incidence and chromosomal type.
authors.forename: B W
authors.initials: BW
authors.lastname: Richards
mesh_terms: D000367:Age Factors; D002869:Chromosome Aberrations; D009358:Congenital, Hereditary, and Neonatal Diseases and Abnormalities; D003710:Demography; D004194:Disease; D005191:Family Characteristics; D008423:Maternal Age; D009026:Mortality; D010290:Parents; D011153:Population; D011154:Population Characteristics; D011157:Population Dynamics; D011158:Population Growth
keywords: Age Factors; Chromosome Abnormalities; Demographic Factors; Diseases; Family And Household; Family Characteristics; Maternal Age--changes; Mortality; Neonatal Diseases And Abnormalities; Parental Age; Population; Population Characteristics; Population Dynamics; Population Growth