中国当代医药
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中国当代医药  2018, Vol. 25 Issue (2): 129-131    DOI:
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Tiotropium bromide in the treatment of COPD and its impact on quality of life
WEN Zhi-guang
Department of Respiratory Medicine,People′s Hospital of Qingcheng District in Qingyuan City,Guangdong Province,Qingyuan 511500,China
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