rhazes contribution to the role of nutrition in preventive medicine and public health.

arman zargaran 1. pharmaceutical sciences research center and dept. of phytopharmaceuticals (traditional pharmacy), school of pharmacy, shiraz university of medical sciences , shiraz, iran ; 2. research office for the history of persian medicine and dept. of history of medicine, shiraz university of medical sciences , shiraz, iran.

amir azizi 2. research office for the history of persian medicine and dept. of history of medicine, shiraz university of medical sciences , shiraz, iran.

gholamreza kordafshari 3. faculty of traditional medicine, tehran university of medical sciences , tehran, iran.

afshin borhani-haghighi 4. vascular and degenerative neurology research center, shiraz university of medical sciences , shiraz, iran ; 5. dept. of neurology, shiraz university of medical sciences , shiraz, iran.