| http://www.w3.org/ns/prov#value | - It seems likely that there is a complex interplay between cough and psychological traits and problems that may vary with time.Contrary to anecdotal observations, and consequent to the representativeness of our sample we found cough to be more common in men and in people aged over 60 years, two groups where there is evidence to suggest there is a tendency to under-report symptoms to clinicians [51]
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