title: [Study of the play behavior of mentally retarded children].
mesh_terms: D002648:Child; D002675:Child, Preschool; D006801:Humans; D008607:Intellectual Disability / Q000523:psychology*; D007360:Intelligence; D010988:Play and Playthings
vernacular_title: Eine Untersuchung des Spielverhaltens bei geistig behinderten Kindern.