Article Text
Chest clinic
Case based discussion
What causes occupational asthma in cleaners?
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Footnotes
Contributors VCM is the main author and clinical scientist carrying out the majority of the specific inhalation challenge tests. ASR, PSB and GIW have seen the workers clinically and have contributed to the writing of the paper.
Competing interests None declared.
Patient consent Obtained.
Provenance and peer review Not commissioned; externally peer reviewed.