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Trends in prevalence of symptoms of asthma, hay fever, and eczema in 12-14 year olds in the British Isles, 1995-2002: questionnaire survey

BMJ 2004; doi: https://doi.org/10.1136/bmj.38057.583727.47 (Published 17 March 2004) Cite this as: BMJ 2004;:bmj;bmj.38057.583727.47v1

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