title: [2 or 3 studies on mentally retarded children. 2. On upper respiratory infections in mentally retarded children].
mesh_terms: D002648:Child; D006801:Humans; D007223:Infant; D008607:Intellectual Disability; D019989:Persons with Intellectual Disabilities; D012141:Respiratory Tract Infections
keywords: MENTAL DEFICIENCY; RESPIRATORY TRACT INFECTIONS/in infancy and childhood