411Epidemiology and Antimicrobial Susceptibility of Gram-Negative Pathogens Causing Intra-Abdominal Infections in Pediatric Patients in the U.S. – SMART 2010-2013. (December 2014) - Lob, Sibylle; Badal, Robert; Johnson, Aaron; Hackel, Meredith; Bouchillon, Samuel; Sahm, Dan; Hoban, Daryl