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. Author manuscript; available in PMC: 2017 Jul 1.
Published in final edited form as: J Stat Plan Inference. 2016 Jul;174:38–51. doi: 10.1016/j.jspi.2016.01.012

Figure 1.

Figure 1

The Smoking Cessation data. Percentage of nonmissing outcomes during each visit of the study (top plot). Percentage of smokers (determined by CO readings) by 4 treatment groups (bottom plot). Index of time is plotted in days.