Index of /nhis/nhis/nhis/ftp.cdc.gov/pub/Health_Statistics/NCHS/Program_Code/NHIS/1981
Parent Directory
CHLDHLTH.SAS
CONDITON.SAS
DRVISITX.SAS
HOSPITAL.SAS
HOUSEHLD.SAS
PERSONSX.SAS
conditon.sas
personsx.sas
Apache/2.4.46 (FreeBSD) PHP/7.4.16 OpenSSL/1.1.1h-freebsd mod_apreq2-20090110/2.8.0 mod_perl/2.0.11 Perl/v5.32.0 Server at data.nber.org Port 80