Tara, Akiko, Asuka Sada, Takuya Inoue, Noriyuki Misago, and Yutaka Narisawa. 2011. “A Case of Phacomatosis Pigmentokeratotica in Japanese Monozygotic Twins”. Acta Dermato-Venereologica 91 (5):602-3. https://doi.org/10.2340/00015555-1133.