[Detection of early cancer of colorectum by mass survey system].
Hojo
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D015179:Colorectal Neoplasms / Q000473:pathology / Q000517:prevention & control*; D005188:False Negative Reactions; D005189:False Positive Reactions; D006801:Humans; D008403:Mass Screening / Q000379:methods*; D009367:Neoplasm Staging; D009780:Occult Blood