R. Wenzel, G. Bearman, und M. Edmond. Infection Control and Hospital Epidemiology: The Official Journal of the Society of Hospital Epidemiologists of America, 29 (11):
1012--1018(November 2008)PMID: 18937571.
M. Bonten, D. Austin, und M. Lipsitch. Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America, 33 (10):
1739--46(November 2001)PMID: 11595995.
N. Back, C. Linnemann, J. Staneck, und U. Kotagal. Infection Control and Hospital Epidemiology: The Official Journal of the Society of Hospital Epidemiologists of America, 17 (4):
227--231(April 1996)PMID: 8935730.