[1] Univ Pittsburgh, UPMC Childrens Hosp Pittsburgh, Safar Ctr Resuscitat Res, Dept Crit Care Med,Sch Med, Pittsburgh, PA 15260 USA
[2] Boston Childrens Hosp, Dept Neurol, Boston, MA USA
[3] Boston Childrens Hosp, Dept Anesthesiol Crit Care & Pain Med, Boston, MA USA
[4] Harvard Med Sch, Boston, MA 02115 USA
[5] Childrens Natl Med Ctr, Crit Care Med, Washington, DC 20010 USA
[6] Phoenix Childrens Hosp, Barrow Neurol Inst, Pediat Neurosurg, Phoenix, AZ USA
[7] Oregon Hlth & Sci Univ, Dept Med Informat & Clin Epidemiol, Pacific Northwest Evidence Based Practice Ctr, Portland, OR 97201 USA
[8] Univ Washington, HIPRC, Seattle, WA 98195 USA
[9] Oregon Hlth & Sci Univ, Dept Neurol Surg, Portland, OR 97201 USA
[10] Univ Utah, Salt Lake City, UT USA
[11] Stanford Univ, Dept Neurosurg, Stanford, CA 94305 USA
[12] Univ British Columbia, Child & Family Res Inst, British Columbias Childrens Hosp, Dept Pediat, Vancouver, BC, Canada
[13] Duke Univ, Dept Pediat, Div Pediat Crit Care Med, Sch Nursing,Sch Med, Durham, NC 27706 USA
[14] Univ Washington, Seattle Childrens Hosp, Div Pediat Neurol, Seattle, WA 98195 USA