G. Alvarez, S. Harlow, C. Denman, and M. Hofmeister. Revista Panamericana De Salud Pública = Pan American Journal of Public Health, 25 (2):
120--127(February 2009)PMID: 19531306.
N. Back, C. Linnemann, J. Staneck, and 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.
J. Band, D. Fraser, A. Hightower, and C. Broome. JAMA: The Journal of the American Medical Association, 252 (23):
3249--50(December 1984)PMID: 6334756.
M. Breukels, E. van der Zijde, M. van Tol, and G. Rijkers. Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America, 34 (2):
191--7(January 2002)PMID: 11740707.
R. Brooks, C. Woods, D. Benjamin, and N. Rosenstein. Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America, 43 (1):
49--54(July 2006)PMID: 16758417.