Medieval prognosis and astrology : a working edition of Aggregationes de crisi et creticis diebus : with introduction and English summary /
O'Boyle, Cornelius.
Wellcome Unit for the History of Medicine (University of Cambridge)
Cambridge : Wellcome Unit for the History of Medicine,
1991.
Aggregationes de crisi et creticis diebus.
Prognosis
Medical astrology