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. Author manuscript; available in PMC: 2014 Mar 3.
Published in final edited form as: Health Care Manage Rev. 2011 Oct-Dec;36(4):315–326. doi: 10.1097/HMR.0b013e31820e1124

Figure 1.

Figure 1

Evolution of tobacco quitlines with key historical events*

Note: *Vertical axis indicates total number of quitlines.

NAQC = North American Quitline Consortium; MSA = Master Settlement Agreement.