title: Polydactyly: a genetic study in South America.
mesh_terms: D001741:Black or African American; D000367:Age Factors; D001118:Argentina; D044383:Black People; D002677:Chile; D000013:Congenital Abnormalities / Q000145:classification / Q000453:epidemiology / Q000235:genetics; D003241:Consanguinity; D005006:Ethnicity; D005260:Female; D005385:Fingers / Q000002:abnormalities*; D005787:Gene Frequency; D005843:Geography; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D008423:Maternal Age; D009154:Mutation; D010290:Parents; D012737:Sex Factors; D014034:Toes / Q000002:abnormalities*; D014583:Uruguay