[1]Jilin Univ, Dept Pediat, China Japan Union Hosp, Changchun, Jilin, Peoples R China.
[2]Jilin Univ, Dept Rehabil, China Japan Union Hosp, Changchun, Jilin, Peoples R China.
[3]Jilin Univ, Dept Neurosurg, China Japan Union Hosp, 126 Xiantai St, Changchun 130033, Jilin, Peoples R China.