Once colon cancer becomes symptomatic, nine times out of ten it is too late.
一旦结肠癌出现症状，十有八九就为时已晚。
-- Kevin Scott Richardson 凯文·理查德森
Once colon cancer becomes symptomatic, nine times out of ten it is too late.
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Once colon cancer becomes symptomatic, nine times out of ten it is too late.
一旦结肠癌出现症状，十有八九就为时已晚。
-- Kevin Scott Richardson 凯文·理查德森
