Chronic Cough Clinical Trial
Official title:
Cough in Eastern and Central Finland
Comparison of citric acid and mannitol cough provocation tests among subjects with chronic cough and healthy volunteers.
35 subjects with chronic cough plus 25 subjects without any cough will be asked to participate. The study consists of two visits in the outpatient clinic of Kuopio University Hospital, department of respiratory medicine, 2 - 7 days apart. They will fill in the Leicester Cough Questionnaire and undergo two different cough provocation tests, in random order: Mannitol test and citric acid test. If a chest x-ray has not been taken within 6 months, it will be taken. ;
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