[1] Mass Gen Children, Div Adolescent & Young Adult Med, Boston, MA USA
[2] Harvard Med Sch, Dept Pediat, Boston, MA USA
[3] American Acad Pediat, Dept Res, Itasca, IL USA
[4] Univ Nebraska Med Ctr, Dept Psychiat, Omaha, NE USA
[5] Yale Sch Med, Dept Emergency Med, New Haven, CT USA
[6] Yale Sch Med, Dept Pediat, New Haven, CT USA
[7] Mass Gen Children, Div Adolescent & Young Adult Med, 175 Cambridge St,Fifth Floor, Boston, MA 02114 USA