Much Greek medical literature was translated into Arabic between the seventh and eleventh centuries, and after the ninth, Muslim writers began to add their own knowledge to what they transmitted from the Greeks. The most influential medical writers were known to the West as Rhazes (d. 925), Haly Abbas (fl. 10th c.), Albucasis (d. after 1009), and Avicenna (d. 1037). Their works, such as Rhazes’ Almansor and Avicenna’s Canon, were chiefly encyclopedic or synoptic. See Siraisi 1990 pp. 11-12, with bibliography, and the bibliography in Conrad 1995, pp. 498f., particularly Ullmann 1978.