(Q39338537)

English

Urban factor and prevalence of respiratory symptoms and "angina ectoris". A study on 9,168 twin pairs with the aid of mailed questionnaires

scientific article

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Urban factor and prevalence of respiratory symptoms and "angina ectoris". A study on 9,168 twin pairs with the aid of mailed questionnaires (English)
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1 December 1966
743-748

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