Columbia subject headings:
Harvard subject headings:
Charities--Byzantine Empire--History.
Medical care--Byzantine Empire--History.
Medicine, Medieval--Byzantine Empire.
Monasticism and religious orders--Byzantine Empire--Rules.
Orthodox Eastern monasticism and religious orders--Rules.
Public health--Byzantine Empire.
Princeton subject headings:
Medicine, Medieval--Byzantine Empire.
Monasticism and religious orders--Byzantine Empire--Rules.
Public health--Byzantine Empire.