1. Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, Georgia, USA
2. Swedish Reference Laboratory for Pathogenic Neisseria, Department of Laboratory Medicine, Microbiology, Örebro University Hospital, Örebro, Sweden
3. Department of Microbiology and Immunology, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
4. Laboratories of Bacterial Pathogenesis, VA Medical Center, Decatur, Georgia, USA