title: Gingival lichen planus: a diagnostic problem.
authors.affiliation: Oral Diagnosis Section, University Mariha, Brazil.
authors.forename: I R
authors.initials: IR
authors.lastname: Rubira
authors.forename: J P
authors.initials: JP
authors.lastname: Gobetti
mesh_terms: D003937:Diagnosis, Differential; D005260:Female; D005882:Gingival Diseases / Q000175:diagnosis / Q000209:etiology / Q000628:therapy; D006801:Humans; D017676:Lichen Planus, Oral / Q000175:diagnosis* / Q000209:etiology / Q000628:therapy; D008875:Middle Aged; D013315:Stress, Psychological / Q000150:complications