sentences:  However, while the clinical trials were completed in 2015, no study data have been published.The expected results from using cefoxitin over carbapenems, another type of antibiotic with a wider bacterial spectrum, included effective treatment of "E. coli" produce extended spectrum beta-lactamase, less selective pressure on the GI tract which better maintains balanced flora, and a lower treatment cost.This followed a 2012 French study on the same E. coli strain with CTX-M-15 extended release beta-lactamase.