Healthcare-associated infections [microfiche] : hrg. before the Comm. on Oversight a. Gov. Reform, House of Representatives, 110th congr., 2nd sess., April 16, 2008. - Washington : U.S. Gov. Print. Off., 2009. - 2 microfiches : ill. ; 105x148mm.. - (Serial N 110-122)[MFN: 4129]