NHIS Sources

Variable	Year	Supplement
DP0907	1994	Disability phase 1 record
DP0908	1995	Disability phase 1 record
GOSCHOOL	1993	Person (core questionnaire)
GOSCHOOL	1992	Person (core questionnaire)
NGTSFC5O	1981	Child health
SCHVACNW	1988	Child health