title: Three cases of symmetrical nevus of Ota and a brief literature review.
authors.affiliation: Department of Dermatology, West China Hospital, Sichuan University, Sichuan, Chengdu, China.
authors.forename: Ting
authors.initials: T
authors.lastname: Yang
authors.affiliation: Department of Dermatology, West China Hospital, Sichuan University, Sichuan, Chengdu, China.
authors.forename: Xian
authors.initials: X
authors.lastname: Jiang