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T. Laatikainen et al. “Allergy Gap between Finnish and Russian Karelia on Increase”. Allergy 66, № 7 (2011); Anita Kondrashova et al. “A Six-fold Gradient in the Incidence of Type 1 Diabetes at the Eastern Border of Finland”. Annals of Medicine 37, № 1 (2005); Anita Kondrashova et al. “Lower Economic Status and Inferior Hygienic Environment May Protect Against Celiac Disease”. Annals of Medicine 40, № 3 (2008).