F. Allerberger, and H. Mittermayer. Clinical Microbiology and Infection: The Official Publication of the European Society of Clinical Microbiology and Infectious Diseases, 14 (3):
197--199(March 2008)PMID: 18190577.
B. Orden, R. Martínez, R. Millán, M. Belloso, and N. Pérez. Clinical Microbiology and Infection: The Official Publication of the European Society of Clinical Microbiology and Infectious Diseases, 9 (12):
1245--1247(December 2003)PMID: 14686993.