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Keywords from Image Description:
Woldemar Kernig ca. . en Vladimir Kernig Festschrift zum Geburtstag Dr Woldemar Kernig's Von Verehrern und Schlern herausgegeben als Festnummer der St Petersburger medicinischen Wochenschrift St Petersburger medizinische Wochenschrift Bd Nr Dressler PD due to its age PDRusEmpire PD Neurologists from Russia