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Genotype frequencies of bradykinin B2 receptor exon 1 (2/3) polymorphism in 65 patients with angiotensin-converting enzyme inhibitor (ACEi)-induced angio-oedema and 65 control subjects under ACEi treatment but without angio-oedema episodes (control I). ACEi angioedema (n=65) (□); ACEi control I (n=65) (
)
