Abū Jaʿfar Aḥmad ibn Ibrāhīm ibn Abī Khālid ibn al-Jazzār al-Qayrawani (895–979) (Arabic: أبو جعفر أحمد بن أبي خالد بن الجزار القيرواني), was a 10th-century
Arab Muslim physician who became famous for his writings on Islamic medicine. He was born in Qayrawan in Tunisia. He was known in Europe by the Latinized name Algizar.
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