The effects of Chinese Yam-Epimedium mixture on respiratory function and quality of life in patients with chronic obstructive pulmonary disease

OBJECTIVE：To examine the clinical effects of a mixture of Chinese Yam and Epimedium in patients with stable moderate or severe chronic obstructive pulmonary disease（COPD）.METHODS：Forty-nine patients with COPD were randomly allocated to a group whose usual treatment was supplemented with oral Chinese...

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