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Agreement between responses to a standardized asthma questionnaire and a questionnaire following a demonstration of asthma symptoms in adults
Smeeton, N.C.; Rona, R.J.; Oyarzun, M.; Diaz, P.V. (2006)Asthma epidemiology relies heavily on standardized questionnaires, but little is known about the understanding of asthma symptoms among adults in the community. In 2004, the authors assessed the level of agreement between ...