Persian physician Muhammad ibn Zakariya al-Razi (854–925), "the Islamic Hippocrates" advanced experimental medicine, pioneering ophthalmology and founding pediatrics. Persian physician Ali ibn Abbas al-Majusi (d. 994) worked at the Al-Adudi Hospital in Baghdad, leaving "The Complete Book of the Medical Art", which stressed the need for medical ethics and discussed the anatomy and physiology of the human brain. Persian physician Avicenna (980–1037) wrote "The Canon of Medicine", a synthesis of Greek and Arab medicine that dominated European medicine until the mid-17th century.