Columbia subject headings:
Harvard subject headings:
Epidemics--Europe--History.
Epidemics--Portugal--History.
Europe--History--476-1492.
Fernandes, Valentim, active 1494-1516.
Joannes Jacobi, -1384. Regimen contra pestilentiam. Portuguese.
Medicine, Medieval.
Princeton subject headings:
Joannes Jacobi, -1384. Regimen contra pestilentiam.
Plague.