1. Research Service
2. Inönü University, Faculty of Medicine, Department of Microbiology, Malatya, Turkey
3. Department of Bacteriology Anaerobe Reference Laboratory, National Public Health Institute (KTL), Helsinki, Finland
4. Department of Medical Microbiology, Turku University, Turku, Finland
5. Department of Applied Chemistry and Microbiology, Division of Microbiology, University of Helsinki, Helsinki, Finland
6. Infectious Diseases Section, Veterans Affair Medical Center West Los Angeles, Los Angeles, California
7. Department of Medicine
8. Department of Microbiology, Immunology and Molecular Genetics, University of California at Los Angeles School of Medicine, Los Angeles, California