Aëtius, of Amida (502-575)
Aetii medici graeci contractae ex veteribvs medicinae Tetrabiblos, hoc est qvaternio, id est libri uniuersales quatuor…. Basileae: Froben, 1542. Fulltext online
Aëtius of Amida was held in great esteem by Renaissance physicians and by the translator of this book, the renowned Janus Cornarius, who considered Aëtius the best of medical writers. Like Oribasius, Aëtius studied in Alexandria in the Byzantine period. His encyclopedia is basically a collection of excerpts from earlier writers, especially Galen.