Abstract
1 Research Service, VA Medical Center West Los Angeles, Building 304, Room E3-227, 11301 Wilshire Boulevard, Los Angeles, CA 90073, USA
2 Anaerobe Reference Laboratory, National Public Health Institute (KTL), Helsinki, Finland
3 Department of Medical Microbiology, University of Turku, Turku, Finland
4 Infectious Diseases Section, VA Medical Center West Los Angeles, Los Angeles, CA 90073, USA
5 Department of Medicine, UCLA School of Medicine, Los Angeles, CA, USA
6 Department of Microbiology, Immunology, and Molecular Genetics, UCLA School of Medicine, Los Angeles, CA, USA