Ex Chef de laboratoire en toxicologie et pharmacologie LabHead Ciba-Geigy, CIBA, Novartis, Bâle, 1975-2006 Research Nicotine as a hapten in seborrheic dermatitis, The Lancet, British Medical Journal, British Journal of Dermatology, Food and Chemical Toxicology, « Nicotine and Immunology » in Drugs of Abuse and Immune Function Ronald R. Watson ed.

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https://blogs.mediapart.fr/bernard-sudan/blog/170818/de-1887-2020-l-effondrement-du-dogme-de-la-dermite-seborrheique