Technologist-in-charge, Associate researcher Key Laboratory of Gastroenterology of Zhejiang Province, Zhejiang Provincial People's Hospital; People's Hospital of Hangzhou Medical College, Hangzhou, 310014, Zhejiang, China
PUs can be classified into categories I: pink-red area of the skin phase; II: inflammatory infiltration phase; and III and IV: ulceration phase, which is commonly encountered in clinical practice,...