Behavioral Counseling to Prevent Sexually Transmitted Infections: A Systematic Review for the U.S. Preventive Services Task Force

Figure 2.
Figure 2. Study flow diagram.

KQ = key question; SER = systematic evidence review. * Articles for KQ3 and KQ4 were reviewed from articles from KQ1 and KQ2.

This Article

  1. Ann Intern Med October 7, 2008 vol. 149 no. 7 497-508