DO YOU WANT TO HELP KIDS WITH AUTISM? Typically Developing Children Needed for Research Study Researchers at Stanford University are currently recruiting typically developing children to participate in a research study about children with Autism Spectrum Disorders to better understand the causes of this condition. In order to participate in this research study you or your child must: * Be between the ages of 3 and 17 years * Be in good medical health and not have a neuropsychiatric disorder * Be willing to provide a blood, saliva and urine sample There is no cost to participate in this research study. You will be paid 50 dollars for fully completing this study. For more information, call (650) 736-1235. For general information regarding questions, concerns, or complaints about research, research related injury, or the rights of research participants, please call (650) 723-5244 or toll-free 1-866-680-2906, or write to the Administrative Panel on Human Subjects in Medical Research, Administrative Panels Office, Stanford University, Stanford, CA 94305-5401.