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Heterogeneity of β–thalassemia mutations related to recent migration in France and the United Kingdom compared to Italy. The prevalence of the most common mutation in the country is shown in red (Based on Galanello R, Eleftheriou A, Trager-Synodinos J, Old J, Petrou M, Angastiniotis M. Prevention of thalassaemias and other haemoglobin disorders. Thalassemia International Federation [TIF] Publications. Vol 1, 2003; by courtesy of TIF)
