unless they are related, one of your parents most likely carried FAP mutation, the other parent's colon cancer probably the result of environment + life style (as opposite to inheritance). Have you considered vegetarian life?
FAP
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• don't know about FAP; considering on a diet of less or no meat. -33水水- ♀ (0 bytes) () 09/29/2010 postreply 07:25:35