Oral Chinese herbal medicine for improvement of quality of life in patients with stable chronic obstructive pulmonary disease: a systematic review.

PURPOSE This study evaluates published clinical trials of Chinese herbal medicine (CHM) for chronic obstructive pulmonary disease (COPD) that employ a health-related quality of life (HRQoL) outcome measure. METHODS Searches were conducted in April 2011 on MEDLINE, Embase, the Cochrane Controlled Trials Register, CINAHL, Scopus, and Chinese databases (CNKI… (More)