Lutchminarian, K., and D. Clarke. “The Microbiology of Ulcerative Skin Cancers: Does the Presence of Pathogenic Bacteria Increase the Risk of Postoperative Complications?”. South African Journal of Surgery, Vol. 59, no. 1, Mar. 2021, p. 25, http://sajs.redbricklibrary.com/index.php/sajs/article/view/3147.