Etiologies of angioedema in referral populations

This figure shows the etiologies of angioedema in 929 patients referred to a specialty clinic for angioedema in a tertiary-care center.

ACE: angiotensin-converting enzyme.

Data from: Zingale LC, Beltrami L, Zanichelli A, et al. Angioedema without urticaria: a large clinical survey. CMAJ 2006; 175:1065.

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