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Skin pattern of livedo reticularis and urticaria compared with livedo racemosa

Skin pattern of livedo reticularis (top and bottom left) and urticaria (bottom right) for comparison with livedo racemosa. (Source: Hartig F, Reider N, Sojer M, et al. Right/left shunt. Front Physiol 2020;11:994. Copyright © 2020. Hartig, Reider, Sojer, Hammer, Ploner, Muth, Tilg, and Köhler. Creative Commons Attribution License [CC BY], https://creativecommons.org/licenses/by/2.0/legalcode.)

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