[1] Cornell Univ, Dept Human Dev, Ithaca, NY 14853 USA
[2] Univ Calif Los Angeles, Dept Neurol, Los Angeles, CA 90095 USA
[3] Univ Pittsburgh, Dept Psychiat & Neurol, Pittsburgh, PA 15213 USA
[4] Montreal Neurol Inst, McConnel Brain Imaging Ctr, Montreal, PQ H3A 2B4, Canada
[5] Univ Calif San Diego, Dept Neurosci, Ctr Autism Res, La Jolla, CA 92037 USA
[6] Univ Washington, Dept Radiol, Seattle, WA 98105 USA
[7] Univ Calif Los Angeles, Brain Mapping Ctr, Los Angeles, CA 90095 USA
[8] Univ Washington, Dept Radiol, Seattle, WA 98195 USA
[9] Univ Calif Davis, MIND Inst, Sacramento, CA 95817 USA
[10] Univ Calif Los Angeles, Dept Human Genet, Los Angeles, CA 90095 USA
[11] Childrens Hosp, PET Ctr, Dept Pediat & Radiol, Detroit, MI 48201 USA
[12] Univ Calif San Diego, Dept Neurol, La Jolla, CA 92093 USA
[13] Univ Penn, Dept Radiol, Philadelphia, PA 19104 USA
[14] Univ N Carolina, Dept Comp Sci, Chapel Hill, NC 27599 USA
[15] Harvard Univ, Sch Med, Dept Neurol, Boston, MA 02129 USA
[16] Univ Utah, Dept Psychiat, Salt Lake City, UT 84108 USA
[17] Kings Coll London, Inst Psychiat, Dept Psychol Med, London SE5 8AF, England
[18] Univ N Carolina, Dept Psychiat, Chapel Hill, NC 27599 USA
[19] Stanford Univ, Dept Psychiat & Behav Sci, Stanford, CA 94305 USA
[20] Yale Univ, New Haven, CT 06520 USA
[21] Massachusetts Gen Hosp, Neural Syst Grp, Boston, MA 02129 USA
[22] Tourette Syndrome Assoc, Bayside, NY 11361 USA
[23] Autism Genet Resource Exchange, Los Angeles, CA 90036 USA
[24] Cure Autism Now, Los Angeles, CA 90036 USA