PT - JOURNAL ARTICLE AU - P-R. Burgel AU - C. Martin TI - Mucus hypersecretion in COPD: should we only rely on symptoms? AID - 10.1183/09059180.00004410 DP - 2010 Jun 01 TA - European Respiratory Review PG - 94--96 VI - 19 IP - 116 4099 - http://err.ersjournals.com/content/19/116/94.short 4100 - http://err.ersjournals.com/content/19/116/94.full SO - EUROPEAN RESPIRATORY REVIEW2010 Jun 01; 19