Intravenous fosfomycin for the treatment of nosocomial infections caused by carbapenem-resistant Klebsiella pneumoniae in critically ill patients: a prospective evaluation - Michalopoulos, A; Virtzili, S; Rafailidis, P; Chalevelakis, G; Damala, M; Falagas, M E (Clin Microbiol Infect, 2010)