G. Alvarez, S. Harlow, C. Denman, und M. Hofmeister. Revista Panamericana De Salud Pública = Pan American Journal of Public Health, 25 (2):
120--127(Februar 2009)PMID: 19531306.
K. Anstey, H. Mack, und N. Cherbuin. The American Journal of Geriatric Psychiatry: Official Journal of the American Association for Geriatric Psychiatry, 17 (7):
542--555(Juli 2009)PMID: 19546653.
L. Archibald, M. den Dulk, K. Pallangyo, und L. Reller. Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America, 26 (2):
290--6(Februar 1998)PMID: 9502444.
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.
S. Baker, und G. Dougan. Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America, (Juli 2007)PMID: 17582565.
J. Band, D. Fraser, A. Hightower, und C. Broome. JAMA: The Journal of the American Medical Association, 252 (23):
3249--50(Dezember 1984)PMID: 6334756.
S. Berrón, L. Fuente, E. Martín, und J. Vázquez. European Journal of Clinical Microbiology & Infectious Diseases: Official Publication of the European Society of Clinical Microbiology, 17 (2):
85--89(Februar 1998)PMID: 9629971.