K. Lee, Y. Chong, H. Shin, Y. Kim, D. Yong, und J. Yum. Clinical Microbiology and Infection: The Official Publication of the European Society of Clinical Microbiology and Infectious Diseases, 7 (2):
88--91(Februar 2001)PMID: 11298149.
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.