title: Authors' response: What determines which 6MWT is conventional?
authors.affiliation: Department of Epidemiology, CAPHRI School for Public Health and Primary Care, Maastricht University, Maastricht, The Netherlands The Research Centre for Autonomy and Participation for Persons with a Chronic Illness, Zuyd University, Heerlen, The Netherlands.
authors.forename: Emmylou
authors.initials: E
authors.lastname: Beekman
authors.affiliation: Department of Epidemiology, CAPHRI School for Public Health and Primary Care, Maastricht University, Maastricht, The Netherlands.
authors.forename: Ilse
authors.initials: I
authors.lastname: Mesters
authors.affiliation: Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium Department of Respiratory Rehabilitation and Respiratory Division, University Hospital Leuven, Leuven, Belgium.
authors.forename: Rik
authors.initials: R
authors.lastname: Gosselink
authors.affiliation: Department of Family Medicine, CAPHRI School for Public Health and Primary Care, Maastricht University, Maastricht, The Netherlands.
authors.forename: Onno C P
authors.initials: OC
authors.lastname: van Schayck
authors.affiliation: Department of Epidemiology, CAPHRI School for Public Health and Primary Care, Maastricht University, Maastricht, The Netherlands.
authors.forename: Rob A
authors.initials: RA
authors.lastname: de Bie
mesh_terms: D000465:Algorithms; D017079:Exercise Tolerance / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D029424:Pulmonary Disease, Chronic Obstructive / Q000503:physiopathology*
keywords: COPD epidemiology; Clinical Epidemiology; Exercise; Pulmonary Rehabilitation