McKibben Linda, Horan Teresa C, Tokars Jerome I, Fowler Gabrielle, Cardo Denise M, Pearson Michele L, Brennan Patrick J
Division of Healthcare Quality Promotion, National Center for Infectious Diseases, Center for Disease Control and Prevention, Atlanta, Georgia 30333, USA.
Infect Control Hosp Epidemiol. 2005 Jun;26(6):580-7. doi: 10.1086/502585.