title: Variables in under-reporting of clefts on birth certificates.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D001719:Birth Certificates; D001724:Birth Weight; D002971:Cleft Lip / Q000453:epidemiology*; D002972:Cleft Palate / Q000453:epidemiology*; D005006:Ethnicity; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D008423:Maternal Age; D010290:Parents; D011247:Pregnancy; D014481:United States