1. Center for Autism Research and Treatment; University of California; Los Angeles CA USA
2. Human Development and Psychology; University of California; Los Angeles CA USA
3. Kennedy Krieger Institute; Johns Hopkins University School of Medicine; Baltimore MD USA
4. Center for Autism and the Developing Brain; Weill Cornell Medical College; New York NY USA
5. Seattle Children's Hospital; University of Washington; Seattle WC USA
6. Health Resources and Services Administration; Rockville MD USA