1. Lichen planus;Boyd;J Am Acad Dermatol,1991
2. The variations and course of lichen planus;Altman;Arch Dermatol,1961
3. Erosive lichen planus involving the glans penis alone;Alinovi;Int J Dermatol,1983
4. The association of lichen planus of the penis with squamous cell carcinoma in situ and with verrucous squamous carcinoma;Bain;J Dermatol Surg Oncol,1989
5. Frequency, duration and localization of lichen planus. A study based on 181 patients;Schmidt;Acta Derm Venereol (Stockh),1961