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Chronic Respiratory Questionnaire Self-Administered Standardized Format (CRQ-SAS) Follow-up Administration Version (Copyright 2001 McMaster University, Hamilton, Ontario, Canada. The Chronic Respiratory Questionnaire Self-Administered including the standardized Dyspnea Domain (CRQSAS), Principal authors G.H. Guyatt and Dr. H.J. Schunemann, is the copyright of McMaster University (Copyright 2001, McMaster University).
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