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. Author manuscript; available in PMC: 2012 Nov 1.
Published in final edited form as: Am J Prev Med. 2011 Nov;41(5):498–503. doi: 10.1016/j.amepre.2011.07.022

Figure 1.

Figure 1

Flow diagram

Note: Intervention Plus consists of the standard intervention (three mailed letters offering treatment) plus two proactive telephone calls offering the same treatment options.

DTS, direct to smoker; HC, health center; PCP, primary care provider