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. Author manuscript; available in PMC: 2024 Nov 1.
Published in final edited form as: Prev Med. 2023 Jul 31;176:107654. doi: 10.1016/j.ypmed.2023.107654

Figure 2: Forest plot comparing incentive interventions for smoking abstinence at last assessment during pregnancy vs. control or usual care.

Figure 2:

*Month of pregnancy when last assessment during pregnancy was completed. Dash (−) indicates could not be calculated.