Tohoku University Digital Archives PortalTohoku University Digital Archives PortalSearchSpecial ExihibitionGuideNewsContactDigital archives of Tohoku University departmentsTohoku University Main Library CollectionCollectionGuideUse of MaterialsExhibitionNewsContact(Tohoku University Main Library)Medical Library Digital CollectionsCollectionGuideUse of MaterialsExhibitionNewsTohoku University ArchivesCollectionThematic ExhibitionUsage GuideContact