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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. | LitMetric

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC403847PMC
http://dx.doi.org/10.1136/bmj.38057.583727.47DOI Listing

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