1. Allen, A. C.: The skin. A clinicopathologic treatise. St. Louis: C. V. Mosby Co. 1954.
2. Belisario, J. C.: Cancer of the skin. London: Butterworth & Co. 1959.
3. Rarer, F.: Discheratosi, epiteliomi multi e melanosarcoma in bambino die tre anni con xeroderma pigmentoso. Rif. med. 53, 635–638 (1937).
4. Lancaster, H. O.: Geographical aspects of melanoma. Lancet 2, 929 (1955).
5. Macdonald, E. J.: The epidemiology of melanoma. In: The Pigment Cell:molecular, biological and clinical aspects. Ann. N. Y. Acad. Sci. 100,4–17 (1963).