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Italian Dermatological Society
Danish Dermatological Society.
La Societe Francaise de Dermatologie et de Syphiligraphie
Section on Dermatology, Royal Society of Medicine
British Association of Dermatology and Syphilis
Berlin Dermatological Society
Cologne Dermatological Society
German Dermatological Society in Czechoslovakia Republic
Vienna Dermatological Society
Munich Dermatological Society