Although we know that exacerbations are key events in chronic obstructive pulmonary disease (COPD), our understanding of their frequency, determinants, and effects is incomplete. In a large ...
Please provide your email address to receive an email when new articles are posted on . Risk estimation was based on area under the receiver operating characteristic curve, sensitivity and specificity ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback