AU - Cocanour CS TI - ULtrasonography for the diagnosis of intraperitoneal free air in chest-abdominal-pelvic blunt trauma and critical acute abdominal pain—invited critique PT - JOUR DP - 2009 TA - Archives of Surgery pages = {142}, VI - 144 IP - 2 AID - 10.1001/archsurg.2008.526 [doi] 4100 - http://dx.doi.org/10.1001/archsurg.2008.526 SO - Archives of Surgery February 1, 2009 144(2):142