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JOURNAL.PONE.0062985
JOURNAL.PONE.0062985
http://dx.doi.org/10.1371/JOURNAL.PONE.0062985
The coexistence of asthma and chronic obstructive pulmonary disease (COPD): prevalence and risk factors in young, middle-aged and elderly people from the general population.
P356
Q36835097-EFF5B57C-AA22-45D2-A3C9-49A7603702DC
P356
JOURNAL.PONE.0062985
http://dx.doi.org/10.1371/JOURNAL.PONE.0062985