Zboromyrska, Y.; Vila, J. Matrix-Assisted Laser desorption/Ionization Time-of-Flight Mass Spectrometry for the Detection of Extended Spectrum β-Lactamases and Carbapenemases Among Gram-Negative Bacilli: MALDI-TOF-MS Hydrolysis Assay for β-Lactamase Detection. Community Acquir Infect 2015, 2.