In this, the first printed edition of Rerum medicarum libri quatuor by the late antique Byzantine physician Theodorus Priscianus, his work was misattributed to Octavianus Horatianus. Digital facsimile from Google Books at this link. It may be somewhat ironic that Priscianus's work, of relatively limited value from a period in which there was little or no medical advance, was published together with Albucasis' surgery, a work of the greatest practical value.

"Priscianus was a pupil of the physician Vindicianus, fixing the period of his life in the fourth century. He is said to have lived at the court of Constantinople, and to have obtained the dignity of Archiater. He belonged to the medical sect of the Empirici, but not without a certain mixture of the doctrines of the Methodici, and even of the Dogmatici^{[1][2]" (Wikipedia).}