Language function evaluation
All participants who completed intervention were evaluated for oral expression, comprehension and reading through the ABC scale. Moreover, 28 patients (group I, n = 13; and group II, n = 15) participated in the writing evaluation. There is no significant difference between the intervention and control groups in initial ABC score(all P > 0.05).The scores of oral expression, comprehension, reading were significantly higher following intervention than before intervention in both groups (all P <0.05), and group I underwent a better effect (all P <0.05). Nevertheless there was no significant difference in the scores of writing before and after the intervention in both groups(both P > 0.05) (