PT - JOURNAL ARTICLE AU - E. F. Hansen AU - J. Vestbo TI - Bronchodilator reversibility in COPD: the roguish but harmless little brother of airway hyperresponsiveness? AID - 10.1183/09031936.05.00052805 DP - 2005 Jul 01 TA - European Respiratory Journal PG - 6--7 VI - 26 IP - 1 4099 - http://erj.ersjournals.com/content/26/1/6.short 4100 - http://erj.ersjournals.com/content/26/1/6.full SO - Eur Respir J2005 Jul 01; 26