'Ali ibn al-'Abbas al-Majusi (930–994)
Born 930 CE, died 994 CE.
'Ali ibn al-'Abbas al-Majusi (Persian: علی بن عباس مجوسی; died between 982 and 994), also known as Masoudi, or Latinized as Haly Abbas, was a Persian physician and psychologist from the Islamic Golden Age, most famous for the Kitab al-Maliki or Complete Book of the Medical Art, his textbook on medicine and psychology.
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