title: Chronic fissure leukokeratosis of the back with squamous cell epitheloma of the lower lip, action of vitamin B2.
authors.forename: H
authors.initials: H
authors.lastname: THIERS
authors.forename: J
authors.initials: J
authors.lastname: RACOUCHOT
authors.lastname: GUILLERMET
mesh_terms: D006801:Humans; D007971:Leukoplakia; D008046:Lip; D008048:Lip Neoplasms; D012256:Riboflavin
chemical_list: D012256:Riboflavin