Development and validation of a questionnaire to measure asthma control

European Respiratory Journal - Tập 14 Số 4 - Trang 902 - 1999
Elizabeth F. Juniper1, Paul M. O’Byrne2, Gordon Guyatt2, P J Ferrie3, Derek King3
1Department of Clinical Epidemiology & Biostatistics, McMaster University Faculty of Health Sciences, Hamilton, Ontario, Canada
2Medicine, McMaster University Faculty of Health Sciences, Hamilton, Ontario, Canada
3Depts of Clinical Epidemiology and Biostatistics

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