Pepin J, Saheb N, Coulombe MA, et al. : Emergence of fluoroquinolones as the predominant risk factor for Clostridium difficile-associated diarrhea : a cohort study during an epidemic in Quebec. Clin Infect Dis, 41 : 1254-1260, 2005.
Pakyz AL, MacDougall C, Oinonen M, et al. : Trends in antibacterial use in US academic health centers : 2002 to 2006. Arch Intern Med, 168: 2254-2260, 2008.