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Kim, Byung Soo, Kyung Duck Park, Seong Geun Chi, Hyun Chang Ko, Weon Ju Lee, Seok Jong Lee, och Do Won Kim. "Two Cases of Lichen Planus Pigmentosus-inversus Arising From Long-standing Lichen Planus-inversus." Ann Dermatol 2008.

Kim, Byung Soo, et al. "Two Cases of Lichen Planus Pigmentosus-inversus Arising From Long-standing Lichen Planus-inversus." Ann Dermatol 2008.