Volume 1, Number 2, Year 2003 ContentsEDITORIAL 55. Autism: a reviewPinar T. Ozand, Ali Al-Odaib, Hania Merza, Saleh Al Harbi REVIEW ARTICLES69. Gelastic seizuresNeil Gordon75. Current outcome predictors in childhood primitive neuroectodermal tumorsMichael A. GrotzerORIGINAL ARTICLES83. Donepezil hydrochloride: a double-blind study in autistic children Michael G. Chez, Thomas M. Buchanan, Marina Becker, Jami Kessler, Mary C. Aimonovitch, Susan R. Mrazek89. Tumors of the anterior visual pathway in pediatric patientsChidambaram Balasubramaniam, Venkataraman Balasubramaniam95. Status of Toxoplasma gondii infection in the etiology of epilepsyBijay Ranjan Mirdha99. Digit-sucking habit of preschool children in Enugu, Eastern NigeriaSamuel N. Uwaezuoke, Gideon C. IIechukwu, Henrietta U. OkaforCASE REPORTS 103. Paroxysmal hemichorea after streptococcal infection-clinical and diagnostic findingsChristoph Härtel, Kathrin Schepermann, Stefan Schilling, Dirk Petersen, Susanne Eckerle, Jürgen Sperner 107. Bilateral abducens paralysis following head injury: a case reportNebi Yılmaz, Mehmet Arslan, Nejmi Kıymaz, Özgür Demir, Cahide Yılmaz111. Use of faradic stimulus in the treatment of functional aphoniaSujata Sethi, Subhash C. Bhargava