SynthesisThe Cochrane database of systematic reviews2003
Methylxanthines for exacerbations of chronic obstructive pulmonary disease.
R G Barr et al.PubMed ↗Publisher ↗
No numbers read from the abstract.
9 papers cite it
this papercites it
SynthesisThe Cochrane database of systematic reviews2003
R G Barr et al.PubMed ↗Publisher ↗
No numbers read from the abstract.