Authors: L E Arnold; M G Aman; A Martin; A Collier-Crespin; B Vitiello; E Tierney; R Asarnow; F Bell-Bradshaw; B J Freeman; P Gates-Ulanet; A Klin; J T McCracken; C J McDougle; J J McGough; D J Posey; L Scahill; N B Swiezy; L Ritz; F Volkmar Journal: J Autism Dev Disord Date: 2000-04