If you have NCHS restricted natality data and don't want to painstakenly deal with the changing file structures over time-- check out this resource!
** Researchers using US Natality Data: Code to read & label restricted-access CDC natality data into Stata/R now includes 2019β2023 (in addition to 2010β18): florenciatorche.github.io/ReadNatality... Please shareβno need for us all to write the same code! Thanks to @RussellSageFdn for funding