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Yao T, Ong MK, Max W, Keeler C, Wang Y, Yerger VB, Sung HY.Yao T, et al.Tob Control. 2018 May;27(3):301-309. doi: 10.1136/tobaccocontrol-2016-053434. Epub 2017 Jul 26.Tob Control. 2018.PMID: 28747492
Keeler C, Max W, Yerger VB, Yao T, Wang Y, Ong MK, Sung HY.Keeler C, et al. Among authors: yerger vb.Nicotine Tob Res. 2020 Apr 17;22(4):522-531. doi: 10.1093/ntr/nty149.Nicotine Tob Res. 2020.PMID: 30032184