title: Multivariate behavioral genetics and development: twin studies.
mesh_terms: D000293:Adolescent; D000328:Adult; D001827:Body Height; D002648:Child; D002657:Child Development; D002675:Child, Preschool; D005260:Female; D014644:Genetic Variation; D005824:Genetics, Behavioral; D006801:Humans; D007223:Infant; D007360:Intelligence; D008297:Male; D008433:Mathematics; D008957:Models, Genetic; D011247:Pregnancy; D012959:Socioeconomic Factors; D014427:Twins