Twinning and Neurologic Morbisity
Am J Dis Child 146:1110-1113, Scheller,J.M.&Nelson,K.B., 1992
Tourette's Syndrome:A Model Neuropsychiatric Disorder
JAMA 273:498-501, Hyde,T.M.&Weinberger,D.R., 1995
The Chiari Type I Malformation in Two Monozygotic Twins and First-Degree Relatives
Ann Neurol 31:220-222, Stovner,L.J.,et al, 1992