O’Hagan, A.H., A.D. Irvine, T. Brennan, M.Y. Walsh, and E.A. Bingham. 2001. “Fibrous Histiocytoma in a Nine Week Old Male Infant.”. European Journal of Pediatric Dermatology 11 (1):13-8. https://www.ejpd.com/index.php/journal/article/view/178.