Hay fever, hygiene, and household size.

doi:10.1136/bmj.299.6710.1259

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Hay fever, hygiene, and household size.

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1989; 299 doi: http://dx.doi.org/10.1136/bmj.299.6710.1259 (Published 18 November 1989)

Cite this as: BMJ 1989;299:1259

Ear, nose and throat/otolaryngology
Immunology (including allergy)
Child health
Hypertension

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