b. The manuscript should report the number of participants with missing data for baseline variables ... Tables in the Supplementary Appendix should be labeled Table S1, Table S2, etc.

Appendix A: Demographic makeup of AI experts surveyed Appendix B: Selected tables by expert and public demographics Note: We did not receive enough responses from Hispanic or Black experts to be able ...

The tables (“life expectancy tables”) are located in Appendix B of Pub. 590-B — but be sure you are looking at the Pub. 590-B that is “for use in preparing 2021 returns.” ...