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The third U.S. Preventive Services Task Force (USPSTF) has been releasing new and updated guidelines during the past 3 years (guidelines homepage; Journal Watch May 15 2001; and Journal Watch Apr 13 2004).
USPSTF 3 concludes each of its guidelines with a recommendation, graded as follows:
A -- The intervention is strongly recommended.
B -- The intervention is recommended.
C -- The USPSTF makes no recommendation for or against the intervention.
D -- The intervention is not routinely recommended.
I -- Evidence is insufficient to recommend for or against the intervention.
The USPSTF has updated and revised its recommendation on lung cancer screening. The 1996 recommendation stated that such screening should not be performed in asymptomatic people; th…