title: [Preface to the special issue about the head and neck].
authors.forename: Seiichi
authors.initials: S
authors.lastname: Yamada
mesh_terms: D006257:Head / Q000000981:diagnostic imaging*; D006801:Humans; D009333:Neck / Q000000981:diagnostic imaging*; D011859:Radiography; D013679:Technology, Radiologic / Q000379:methods* / Q000639:trends*