1. Center for Physical Activity Research (CFAS), Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
2. The Parker Institute, Copenhagen University Hospital - Bispebjerg-Frederiksberg, Copenhagen, Denmark
3. Department of Respiratory and Infection Medicine, North Zealand Hospital, Hilleroed, Denmark
4. Department of Respiratory Medicine, Copenhagen University Hospital - Hvidovre, Hvidovre, Denmark