共 67 条
[12]
Cahill K, 2013, COCHRANE DB SYST REV, DOI [10.1002/14651858.CD009329.pub2, 10.1002/14651858.CD006103.pub6]
[16]
Breathlessness during exercise in COPD: how do the drugs work?
[J].
THORAX,
2004, 59 (06)
:455-457