Younis, A.A. “Urticarial Vasculitis As an Initial Manifestation of Colonic Carcinoma: A Case Report and Review of the Literature”. Reumatismo 70, no. 4 (December 20, 2018): 259-263. Accessed May 30, 2020. https://www.reumatismo.org/index.php/reuma/article/view/1052.