Hsieh, Meng-Hsuan, Yueh-An Lu, George Kuo, Wei-Chiao Sun, YuJr Lin, Ya-Chung Tian, and Hsiang-Hao Hsu. “Epidemiology and Outcomes of Anal Abscess in Patients on Chronic Dialysis”. Clinics 74 (May 10, 2019): e638. Accessed November 20, 2019. http://www.revistas.usp.br/clinics/article/view/157899.