Dr Syed Nasir
Dr Syed Nasir
Dr Syed Nasir
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Questionnaire<br />
• Respiratory symptoms<br />
questions from the validated European<br />
Community Respiratory Health Survey<br />
(ECRHS) questionnaire.<br />
• Exposure<br />
asked about history of cleaning work;<br />
cleaning agents; cleaning tasks; duration of<br />
work as a cleaner; cleaning locations and<br />
training on the use of cleaning agents.
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