[1] Johns Hopkins Univ, Sch Med, Dept Neurol, Div Neurosci Crit Care & Cardiac Surg, Baltimore, MD USA
[2] Johns Hopkins Univ, Sch Med, Dept Surg, Div Neurosci Crit Care & Cardiac Surg, Baltimore, MD USA
[3] Johns Hopkins Univ, Sch Med, Dept Anesthesiol, Div Neurosci Crit Care & Cardiac Surg, Baltimore, MD USA
[4] Johns Hopkins Univ, Sch Med, Dept Crit Care Med, Div Neurosci Crit Care & Cardiac Surg, Baltimore, MD USA
[5] Univ Texas Hlth Sci Ctr Houston, McGovern Sch Med, Div Neurocrit Care, Dept Neurosurg, Houston, TX USA
[6] Griffith Univ, Sch Med, Griffith, NSW, Australia
[7] Prince Charles Hosp, Crit Care Res Grp, Chermside, Qld, Australia