1Günel MK,Tarsuslu T,Mutlu A,et al.Investigation of interobserver reliability of the gilletle functional questionaive in clildren with spastic diparetic cerebral palsy[J].Acta Orthop Traumatol Ture,2010,44(1):63-69.
2Himmelmann K,Hagberg G,Beckung E,et al.The changing panorama of cerebral palsy in prevalence and origin in the birth-year period 1995-1998[J].Acta Paediatr,2005,94:287-294.
9Rajan Wadhawan MD, William Oh MD, Rebecca L Perritt MS, et al. Twin gestation and neurodevelopmental outcome in extremely low birth weight infants[J].Pediatrics, 2009,123 (2) : 220-227.
10Taylor CL, Groot J, Blair EM, et al. The risk of cerebral palsy in sur- vivors of multiple pregnancies with cofetal loss or death [J]. American J Obstet Gynecol, 2009,201 ( 1 ) : 41-46.