Purulent sputum predictive of bacterial infection in COPDBMJ 2007; 334 doi: https://doi.org/10.1136/bmj.334.7588.284-c (Published 08 February 2007) Cite this as: BMJ 2007;334:284
Sputum that looks purulent has been confirmed as a good predictor of bacterial infection in patients with an exacerbation of …
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