1. Verruciform xanthoma;Shafer;Oral Surg Oral Med Oral Pathol,1971
2. Verruciform xanthoma of the penis;Kraemer;Arch Dermatol,1981
3. Shafer, Hine, Levy, a textbook of oral pathology, third ed. 153.
4. Verruciform xanthoma of the oral mucosa;van der Waal;J Oral Maxillofac Surg,1985
5. A case of verruciform xanthoma presenting as leukoplakia on the lower lip;Nam;Korean J Dermatol,2006