Authors: P A Filipek; P J Accardo; G T Baranek; E H Cook; G Dawson; B Gordon; J S Gravel; C P Johnson; R J Kallen; S E Levy; N J Minshew; S Ozonoff; B M Prizant; I Rapin; S J Rogers; W L Stone; S Teplin; R F Tuchman; F R Volkmar Journal: J Autism Dev Disord Date: 1999-12