Screening for colorectal cancer.
Wendt
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D003110:Colonic Neoplasms / Q000175:diagnosis*; D003113:Colonoscopy / Q000191:economics; D015179:Colorectal Neoplasms / Q000175:diagnosis; D006801:Humans; D017057:Medically Uninsured; D008875:Middle Aged; D009780:Occult Blood; D013781:Texas