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Hi Doctor

Wold be grateful fopr your comments onthis reprinted matter

‘When it comes to appraising the effectiveness of treatment,’ Sutherland95 comments, ‘ one of the difficulties is the striking range in the natural duration of cancer of the same site in a series of cases.’ Sutherland95 gives among many cancers, the natural duration of cancers (left untreated) of the tongue and oral cavity in males ranging from three months to seventy five months, and of the cervix uteri and female breast, from three months to twelve and a half years and two months to seventeen and half years respectively.
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