作者单位:Colby Coll, Hlth Serv, Waterville, ME 04901 USA[1]Harvard Med Sch, Dept Phys Med & Rehabil, 101 Merrimac 250, Boston, MA 02124 USA[2]Colby Coll, Dept Comp Sci, Waterville, ME 04901 USA[3]Boston Childrens Hosp, Div Emergency Med, Boston, MA USA[4]Harvard Med Sch, Dept Psychiat, Boston, MA USA[5]Red Sox Fdn, Boston, MA USA[6]