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Plasma samples were collected from a healthy control, an IgE-dependent angioedema individual (IgE-AE) and patients presenting with HAE I, HAE-nC1INH non-carrier of F12 mutation (during an attack and the remission period), and with HAE-nC1INH non-carrier of F12 mutation during OC (+ OC) and after stopping OC pill (– OC) intakes. The values of the corresponding spontaneous amidase activities are indicated.
