1. Global burden of COPD: systematic review and meta-analysis;Halbert;Eur. Respir. J.,2006
2. An official American Thoracic Society/European Respiratory Society statement: key concepts and advances in pulmonary rehabilitation [published correction appears in Am J Respir Crit Care Med. 2014 Jun 15;189(12):1570];Spruit;Am. J. Respir. Crit. Care Med.,2013
3. (The National Board of Health and Welfare). Nationella riktlinjer för vård vid astma och KOL - Stöd för styrning och ledning (National guidelines for treatment of asthma and COPD - Support for governance and management);Socialstyrelsen,2020
4. Non-pharmacological interventions in preventive, rehabilitative and restorative medicine;Ursa Herguedas A,2020
5. Defining non-pharmacological interventions (NPIs);Ninot,2021