title: [Speech development in children with multiple defects: multiplication or summation of retarding factors?].
mesh_terms: D000550:Amblyopia / Q000150:complications*; D002675:Child, Preschool; D034381:Hearing Loss / Q000150:complications*; D006801:Humans; D008607:Intellectual Disability / Q000150:complications*; D013064:Speech Disorders / Q000145:classification / Q000209:etiology*
vernacular_title: Rozwój mowy u wielorako uszkodzonych dzieci "mnozenie" czy "dodawanie" czynników opóźniajacych?