[1] Univ Kansas, Med Ctr, Dept Surg, Kansas City, KS 66103 USA
[2] St Barnabas Hlth Care Syst, Emergency Serv, Livingston, NJ USA
[3] St Josephs Hosp, Ctr Hlth, Syracuse, NY USA
[4] Providence Gen Hosp, Everett, WA USA
[5] W Virginia Univ Hosp Inc, Morgantown, WV USA
[6] St Josephs Hosp & Med Ctr, Paterson, NJ USA
[7] St Johns Mercy Med Ctr, Emergency Serv, Des Moines, IA USA