1. Microbiology Service, Department of Laboratory Medicine, Clinical Center, National Institutes of Health, Bethesda, Maryland, USA
2. Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
3. Microbiology Department, Freeman Hospital, Newcastle upon Tyne, United Kingdom
4. Laboratory of Chronic Airway Infection, Pulmonary Branch, National Heart, Lung, and Blood Institute, Bethesda, Maryland, USA