Twinning and Neurologic MorbisityAm J Dis Child 146:1110-1113, Scheller,J.M.&Nelson,K.B., 1992
Destructive Brain Lesions of Presumed Fetal Onset:Antepartum Causes of Cerebral PalsyPediatrics 88:898-906, 10591991., Scher,M.S.,et al, 1991