Example ihis_00012old.dta of NHIS = National health interview
series
See also https://nhis.ipums.org/nhis/
http://www.louischauvel.org/NHISCODEBOOK.doc
=>
nhis extract codebook
http://www.louischauvel.org/ihis_00012old.dta
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nhis extract dta file
http://www.louischauvel.org/basesstataengl2018.pdf
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tutorial/bases of stata
http://www.louischauvel.org/nhisbase1.do
=>
a .do file to begin with