What is cancer and aetiology and predisposing factors
There are many known substances or agents that play an important role in cancer formation these agents are called carcinogenesis which may be either viral carcinogens, physical carcinogens, genetic carcinogens and chemical carcinogens
How cancer formed or what is cancer
The body is the basic unite of the life, so question how normal cells become cancer cells as we know the body contains millions of cells these normal cells undergo the process of growth ,division in controlled manner to produce more cells as they need to keep the body healthy

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