High-frequency skin ultrasonographic and dermoscopic features of seborrheic keratosis
Wang Shiqi, Liu Jie, Liu Zhaorui, Chi Cheng, Liu Yuehua, Jin Hongzhong
Chinese Journal of Dermatology . 2018, (11): 815 -819 .  DOI: 10.3760/cma.j.issn.0412-4030.2018.11.009