1. Department of Clinical Epidemiology and Health Economics, School of Public Health The University of Tokyo Tokyo Japan
2. Clinical Research Center National Hospital Organization Tokyo Hospital Tokyo Japan
3. Department of Health Services Research, Graduate School of Medicine The University of Tokyo Tokyo Japan
4. Department of Respiratory Medicine, Graduate School of Medicine The University of Tokyo Tokyo Japan
5. Save Sight Institute The University of Sydney Sydney Australia
6. Institute of Education Tokyo Medical and Dental University (TMDU) Tokyo Japan