1. Elderly Care, Queen Elizabeth Hospital, Lewisham and Greenwich NHS Trust, London SE18 4QH, UK
2. Centre for Exercise Activity and Rehabilitation, School of Human Sciences, University of Greenwich, London SE9 2HB, UK
3. Department of Respiratory Medicine, Yokohama Municipal Citizen’s Hospital, Yokohama 221-0855, Japan
4. Respiratory Medicine and Infectious Diseases, Oita University Faculty of Medicine, Yufu 879-5593, Japan
5. Comprehensive Health Professions Education Center, University Hospital, University of the Ryukyus, Okinawa 903-0125, Japan
6. Department of Respiratory Medicine, Nagaoka Red Cross Hospital, Nagaoka 940-2085, Japan
7. Department of Respiratory Medicine, Japanese Red Cross Sendai Hospital, Sendai 982-0801, Japan
8. Department of Respiratory Medicine, National Hospital Organization Okinawa National Hospital, Okinawa 901-2214, Japan
9. Department Pharmacy, Kinjo Gakuin University, Nagoya 463-8521, Japan
10. Department of Respiratory Medicine, Tokyo Medical University Hachioji Medical Center, Tokyo 160-0023, Japan