Jansen, Thomas, FG Bechara, Markus Stücker, and Peter Altmeyer. 2002. “Angiokeratoma of the Scrotum (Fordyce Type) Associated With Angiokeratoma of the Oral Cavity”. Acta Dermato-Venereologica 82 (3):208-10. https://doi.org/10.1080/00015550260132532.