| http://www.w3.org/ns/prov#value | - Allergy is believed to vary by month of birth, but multinational studies taking into account latitude have not been conducted.Methods and FindingsA questionnaire was distributed in 54 centres to a representative sample of 20- to 44-y-old men and women mainly in Europe but also including regions in North Africa, India, North America, Australia, and New Zealand.
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