Avhad, G., and H.R. Jerajani. “Urachal Fibrous Band Unveiled by a Red Umbilical Papule”. European Journal of Pediatric Dermatology 21, no. 4 (December 31, 2011): 246–247. Accessed September 9, 2026. https://ejpd.migration.pkpps03.publicknowledgeproject.org/index.php/journal/article/view/779.