Shimizu, Akira, Masahito Yasuda, Keiko Hoshijima, Madoka Kato, Ayumi Takahashi, Atsushi Tamura, and Osamu Ishikawa. 2015. “Detection of Human Papillomavirus Type 67 in Subungual Bowen’s Disease Presenting As Longitudinal Melanonychia”. Acta Dermato-Venereologica 95 (6):745-46. https://doi.org/10.2340/00015555-2054.