NHIS Sources

Variable	Year	Supplement
TDBCT_C	2003	Child immunization
TDBCT_C	2002	Child immunization
TDBCT_C	2001	Child immunization
TDBCT_C	2000	Child immunization
TDBCT_C	1999	Child immunization
TDBCT_C	1998	Child immunization
TDBCT_C	1997	Child immunization