PT - JOURNAL ARTICLE AU - Andrew RL Medford TI - Combination long-acting β<sub>2</sub>-agonists and inhaled corticosteroids in chronic obstructive pulmonary disease AID - 10.7861/clinmedicine.4-5-470a DP - 2004 Sep 01 TA - Clinical Medicine PG - 470--470 VI - 4 IP - 5 4099 - http://www.rcpjournals.org/content/4/5/470.2.short 4100 - http://www.rcpjournals.org/content/4/5/470.2.full SO - Clin Med2004 Sep 01; 4