Long-Term Effects of Pedometer-Based Physical Activity Coaching in Severe COPD: A Randomized Controlled Trial.
Dario KohlbrennerNoriane Andrina SieviOliver SennMalcolm KohlerChristian F ClarenbachPublished in: International journal of chronic obstructive pulmonary disease (2020)
www.ClinicalTrials.gov, NCT03114241.