K. Lee, Y. Chong, H. Shin, Y. Kim, D. Yong, and J. Yum. Clinical Microbiology and Infection: The Official Publication of the European Society of Clinical Microbiology and Infectious Diseases, 7 (2):
88--91(February 2001)PMID: 11298149.
R. Bonomo, and D. Szabo. Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America, (September 2006)PMID: 16894515.
J. Vázquez, A. Enriquez, L. la Fuente, S. Berrón, and M. Baquero. European Journal of Clinical Microbiology & Infectious Diseases: Official Publication of the European Society of Clinical Microbiology, 15 (2):
181--182(February 1996)PMID: 8801097.