Vainio E, Huovinen S, Liutu M, Uksila J, Leino R. Peptic ulcer and Helicobacter pylori in patients with lichen planus. Acta Derm Venereol [Internet]. 2000 Nov. 1 [cited 2024 Jul. 30];80(6):427-9. Available from: https://medicaljournalssweden.se/actadv/article/view/14057