[1] Geisinger Med Ctr, Dept Trauma Surg, 100 North Acad Ave, Danville, PA 17822 USA
[2] Geisinger Med Ctr, Dept Crit Care Med, 100 North Acad Ave, Danville, PA 17822 USA
[3] Geisinger Commonwealth Sch Med, Dept Psychiat, 525 Pine St, Scranton, PA 18509 USA
[4] Brigham Young Univ, Dept Psychol, 1001 KMBL, Provo, UT 84601 USA
[5] Brigham Young Univ, Neurosci Ctr, Psychol Dept, 1001 KMBL, Provo, UT 84601 USA
[6] Jena Univ Hosp, Dept Anaesthesiol & Intens Care Med, Intens Care Unit, Klinikum 1, D-07747 Jena, Germany