Williamson, D M Multiple pyogenic granulomata occurring during etretinate therapy. [electronic resource] - The British journal of dermatology Nov 1983 - 615-7 p. digital Publication Type: Case Reports; Letter ISSN: 0007-0963 Standard No.: 10.1111/j.1365-2133.1983.tb07688.x doi Subjects--Topical Terms: AdultAgedEtretinate--adverse effectsGranuloma--chemically inducedHumansMaleSkin Diseases--chemically induced