Lang, P G Keratosis lichenoides chronica. Successful treatment with psoralen-ultraviolet-A therapy. [electronic resource] - Archives of dermatology Feb 1981 - 105-8 p. digital Publication Type: Case Reports; Journal Article ISSN: 0003-987X Standard No.: 10.1001/archderm.117.2.105 doi Subjects--Topical Terms: AdultHumansKeratosis--drug therapyLichen Planus--drug therapyMalePUVA TherapyParapsoriasis--pathologyPhotochemotherapy