Media type: E-Article Title: Extensive spinal hyperostosis in a patient receiving isotretinoin-progression after 4 years of etretinate therapy Contributor: ARCHER, C.B.; ELIAS, P.M.; LOWE, N.J.; GRIFFITHS, W.A.D. imprint: Oxford University Press (OUP), 1989 Published in: Clinical and Experimental Dermatology Language: English DOI: 10.1111/j.1365-2230.1989.tb01993.x ISSN: 0307-6938 Keywords: Dermatology Origination: Footnote: