[1] Massachusetts Gen Hosp, Div Trauma Emergency Surg & Surg Crit Care, Boston, MA 02114 USA
[2] Massachusetts Gen Hosp, Dept Anesthesia Crit Care & Pain Med, Boston, MA 02114 USA
[3] Massachusetts Gen Hosp, Dept Pediat Surg, Boston, MA 02114 USA
[4] Harvard Univ, Sch Med, Boston, MA USA
[5] Massachusetts Gen Hosp, Dept Phys Med & Rehabil, Boston, MA 02114 USA
[6] Spaulding Rehabil Hosp, Boston, MA USA