Columbia subject headings:
English literature--Middle English, 1100-1500--History and criticism.
Medical literature--England--History.
Mouth in literature.
Religious literature--History.
Harvard subject headings:
English literature--Middle English, 1100-1500--History and criticism
Medical literature--England--History.
Mouth in literature.
Religious literature--History.
Princeton subject headings:
English literature--Middle English, 1100-1500--History and criticism.
Mouth in literature.