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Development, validity and responsiveness of the Clinical COPD Questionnaire

Thys van der Molen email, Brigitte WM Willemse email, Siebrig Schokker email, Nick HT ten Hacken email, Dirkje S Postma email and Elizabeth F Juniper email

Health and Quality of Life Outcomes 2003, 1:13doi:10.1186/1477-7525-1-13

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