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...

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Autori principali: Venables, K, Burge, P, Davison, A, Newman Taylor, A
Natura: Journal article
Lingua:English
Pubblicazione: BMJ Publishing Group 1984