Screening for Colorectal Cancer: A Targeted, Updated Systematic Review for the U.S. Preventive Services Task Force

Figure 2.
Figure 2. Study selection.

KQ= key question; SER= standardized evidence review. For list of key questions, see legend for Figure 1.

This Article

  1. Ann Intern Med November 4, 2008 vol. 149 no. 9 638-658