Chalem, P Porphyria cutanea tarda affecting a rheumatoid arthritis patient treated with methotrexate: association or coincidence? [electronic resource] - Rheumatology (Oxford, England) May 1999 - 453-6 p. digital Publication Type: Case Reports; Journal Article ISSN: 1462-0324 Standard No.: 10.1093/rheumatology/38.5.453 doi Subjects--Topical Terms: AdultAntirheumatic Agents--adverse effectsArthritis, Rheumatoid--drug therapyFemaleHumansLiver--metabolismMethotrexate--adverse effectsPorphyria Cutanea Tarda--chemically induced