title: The etiology of lichen planus. A hypothesis.
mesh_terms: D006684:HLA-DR Antigens; D000949:Histocompatibility Antigens Class II / Q000032:analysis; D006801:Humans; D066298:In Vitro Techniques; D007371:Interferon-gamma / Q000096:biosynthesis* / Q000494:pharmacology; D008010:Lichen Planus / Q000276:immunology*; D008954:Models, Biological
chemical_list: D006684:HLA-DR Antigens; D000949:Histocompatibility Antigens Class II; D007371:Interferon-gamma