Supplementary information for the paper: Hatchard J., Buykx P., Brennan A. and Gillespie D. (2023) Options for modifying UK alcohol and tobacco tax: A rapid scoping review of the evidence over the period 1997–2018 [version 1; peer review: awaiting peer review]. NIHR Open Research, 3:26 (https://doi.org/10.3310/nihropenres.13379.1) Contents of the Supplementary Information: Appendix 1. Rapid review protocol Appendix 2. Summary of searches undertaken Appendix 3. Detailed characteristics of all sources included in the study Appendix 4. Policy options in detail Checklist for: "Options for modifying UK alcohol and tobacco tax: A rapid scoping review of the evidence over the period 1997–2018" The reporting follows the PRISMA extension for scoping reviews (PRISMA-ScR)  Tricco AC, Lillie...