Peak flow rate records in surveys: reproducibility of observers' reports.
Records of peak expiratory flow rate (PEFR), commonly used in hospital in the management of asthma, have not been evaluated as a method of identifying cases of asthma in population surveys. Four observers were asked to report on whether asthma was present or absent in 61 graphs of PEFR recorded two...
Autori principali: | , , , |
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Natura: | Journal article |
Lingua: | English |
Pubblicazione: |
BMJ Publishing Group
1984
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