الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Cancer is considered to be one of the most common causes of death world wide during 20th century. There is a strong link between environment and cancer.Environment here include all contributory factors other than genetic susceptibility such as occupational exposure to chemical hazards in the work place , sun light ,ionized radiation, air and water pollutants , alcohol and tobacco use and diet which appear to be related to various types of cancer.