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Hen feddegyaeth Kymrie = (Ancienne médecine kymrique) : réimpression d'un souvenir historique publié par Burroughs, Wellcome et Cie. à l'occasion du Congrès de la British Medical Association, qui a été tenu à Swansea (Pays de Galles). Attribution 4.0 International (CC BY 4.0). Source: Wellcome Collection.