Objects
Zhong, Yunqing, Wang, Xiufeng, Xu, Guanglan, Mao, Bing, Zhou, Wei, Min, Jie, Jiang, Hongli, Diao, Xiang, Fu, Juanjuan. African Ethnomedicines Network; 2014. Modified Yupinfeng formula for the treatment of stable chronic obstructive pulmonary disease: a systematic review of randomized controlled trials.