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Angioedema is a swelling, similar to hives, but the swelling is beneath the skin rather than on the surface. The hives are called welts.
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Hereditary angioneurotic edema(HANE) is a nonsex-linked(autosomal) dominant disease that results from mutations in a gene responsible for producing one of the proteins responsible for human immunity. This disease is also known as hereditary angioe...
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