| Affiliation: | 1. Department of Medicine Pulmonary, Allergy, and Critical Care Division, University of Pennsylvania, Philadelphia, PA, USA;1. Department of Internal Medicine, Lapland Central Hospital, Rovaniemi, Finland;2. Division of Cardiology, Department of Internal Medicine, Oulu University Hospital, Oulu, Finland;3. Kuopio Research Institute of Exercise Medicine, Kuopio, Finland;4. Department of Clinical Physiology and Nuclear Medicine, Kuopio University Hospital, Kuopio, Finland;5. Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland;6. Department of Medicine, Central Finland Health Care District, Jyväskylä, Finland;1. The Second Hospital, Jilin University, Changchun 130041, China;2. Division of Health Research, University of the Highlands & Islands, Centre for Health Science, Inverness IV2 3JH, UK |
