title: Should all people over the age of 50 have regular fecal occult-blood tests? If it works, why not do it?
authors.affiliation: Harvard Medical School, Boston, MA 02215, USA.
authors.forename: R H
authors.initials: RH
authors.lastname: Fletcher
mesh_terms: D000368:Aged; D015179:Colorectal Neoplasms / Q000517:prevention & control*; D003362:Cost-Benefit Analysis; D006801:Humans; D008403:Mass Screening / Q000191:economics; D008875:Middle Aged; D009780:Occult Blood