We are especially grateful to the parents and children who patiently and selflessly participated in this study. We also thank the other physicians in Connecticut who have referred their patients to this study: Robert Cerciello, MD; Francis DiMario, MD; Barry Russman, MD; Michelle Kleiman, MD; Carol Leicher, MD; Edwin Zalneraitis, MD; Philip Brunquell, MD; Laura Ment, MD; Edward Novotny, MD; Bennet Shaywitz, MD; S. Nallainathan, MD; Alok Bhargava, MD; Martin Kreminitzer, MD; Harriet Fellows, DO; Jack Finkelstein, MD; Daniel Moalli, MD; Bernard Giserman, MD; Lawrence Rifkin, MD; and Murray Engel, MD. We also thank Edward Novotny, MD, and Francis DiMario, MD, for reinterpreting selected electroencephalograms for the study. Eugene Shapiro, MD, kindly facilitated many administrative issues for us. We also thank the research associates, Susan Smith-Rapaport, MS, Barbara Beckerman, MS, Heather LaCoste, Lynnette Bates, Joann Gehrels, and Kris Engel, for their dedicated work on this project and Wuthikrai Uayingsak, MS, for his exceptional programming expertise.