19 research outputs found
Respiratory symptoms, smoking, occupational exposure and economic impact for BOLD questionnaire (n = 100).
<p>Respiratory symptoms, smoking, occupational exposure and economic impact for BOLD questionnaire (n = 100).</p
Incomplete records in 100 questionnaires.
<p>Incomplete records in 100 questionnaires.</p
Discomfort scores in different participant age groups.
Discomfort scores in different participant age groups.</p