1. Clinical Research Center, National Hospital Organization Tokyo National Hospital, Japan
2. Asthma, Allergy and Rheumatology Center, National Hospital Organization Tokyo National Hospital, Japan
3. Center for Pulmonary Diseases, National Hospital Organization Tokyo National Hospital, Japan
4. Department of Geriatric Medicine, The University of Tokyo, Japan
5. Department of Respiratory Medicine, The University of Tokyo, Japan
6. Department of Respiratory Medicine, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Japan