Growing up in five countries: a comparison of data on weaning, elimination training, age of walking and IQ in relation to social class from European longitudinal studies.
D000367:Age Factors; D002648:Child; D002657:Child Development; D002668:Child Rearing; D002675:Child, Preschool; D003469:Culture; D005060:Europe; D005684:Gait; D006801:Humans; D007223:Infant; D007360:Intelligence; D007361:Intelligence Tests; D008722:Methods; D012923:Social Class; D013223:Statistics as Topic; D014039:Toilet Training; D014886:Weaning