title: Joannes Zacharias Actuarius. A witness of late Byzantine uroscopy, closely linked with Thessaloniki.
authors.affiliation: Renal Unit, St Andrew's State Regional Hospital, Patras, Greece.
authors.forename: A A
authors.initials: AA
authors.lastname: Diamandopoulos
mesh_terms: D018612:Byzantium; D049691:History, Medieval; D006801:Humans; D014572:Urology / Q000266:history*