AU - Mogannam A, Bianchi C, Chiriano J, et al TI - EFfects of prior abdominal surgery, obesity, and lumbar spine level on anterior retroperitoneal exposure of the lumbar spine PT - JOUR DP - 2012 TA - Archives of Surgery pages = {1130-1134}, VI - 147 IP - 12 AID - 10.1001/archsurg.2012.1148 [doi] 4100 - http://dx.doi.org/10.1001/archsurg.2012.1148 SO - Archives of Surgery December 1, 2012 147(12):1130