[1] NYU, Grossman Sch Med, New York, NY USA
[2] Childrens Hosp Philadelphia, Dept Anesthesiol & Crit Care Med, Philadelphia, PA USA
[3] Childrens Hosp Philadelphia, Dept Neurol, Philadelphia, PA USA
[4] Childrens Hosp Philadelphia, Dept Pediat, Philadelphia, PA USA
[5] Boston Univ, Boston Med Ctr, Chobanian & Avedisian Sch Med, Dept Neurol, Boston, MA USA
[6] NYU, Dept Neurol, Div Neurocrit Care, Langone Med Ctr, 30 First Ave,MSB-2-206, New York, NY 10016 USA
[7] NYU, Dept Neurosurg, Div Neurocrit Care, Langone Med Ctr, 530 First Ave,MSB-2-206, New York, NY 10016 USA