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Variations in the interval between the awareness of erythema marginatum and appearance of angioedema in each HAE patient with C1 inhibitor deficiency and HAE-unknown. Abbreviations: HAE-1/2, hereditary angioedema types I and II; HAE-unknown, hereditary angioedema without previously reported gene mutatio Gray bar denotes the variations in the intervals between the awareness of erythema marginatum and appearance of angioedema
