Michael G. McDonell, Jessica Tarantino, Anthony P. Dubose, Patricia Matestic, Kristin Steinmetz, Holly Galbreath & Jon M. McClellan Department of Psychiatry and Behavioural Sciences, University of Washington School of Medicine, Box 359911, Harborview Medical Center, 325 9 Ave, USA. E-mail: mikemcd@u.washington.edu Children s Hospital and Regional Medical Center, Seattle, USA Child Study and Tre...