Elevation of serum ferritin is superior to fecal occult blood testing as a screening test for colonic adenoma... and not only because patients do not have to handle their own stool.
Nelson
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D000236:Adenoma / Q000175:diagnosis*; D003110:Colonic Neoplasms / Q000175:diagnosis*; D005293:Ferritins / Q000097:blood*; D006801:Humans; D009780:Occult Blood; D012698:Serologic Tests; D013048:Specimen Handling
D005293:Ferritins