[1] Univ Rochester, Sch Med & Dent, Dept Anesthesiol, 601 Elmwood Ave,Box 604, Rochester, NY 14642 USA
[2] Robert Wood Johnson St Barnabas Hlth Syst, Dept Anesthesiol, Livingston, NJ USA
[3] Univ Florida, Dept Anesthesiol, Jacksonville, FL USA
[4] Washington Univ, St Louis Childrens Hosp, Div Pediat Hosp Med, St Louis, MO 63110 USA
[5] Boston Childrens Hosp, Dept Anesthesiol Perioperat & Pain Med, Boston, MA USA
[6] Univ Massachusetts, Sch Med, Dept Pediat, UMass Mem Childrens Med Ctr, Worcester, MA USA
[7] Cincinnati Childrens Hosp Med Ctr, Div Pediat Dent, Cincinnati, OH 45229 USA
[8] Univ Washington, Dept Anesthesiol & Pain Med, Seattle, WA 98195 USA
[9] Univ Rochester, Sch Med & Dent, Dept Neurol, Rochester, NY 14642 USA
[10] Univ Rochester, Sch Med & Dent, Dept Psychiat, Rochester, NY 14642 USA
[11] Tufts Sch Med, Dept Anesthesiol, Boston, MA USA