Variable | Year | Supplement |
---|---|---|
VIGLONGD | 2003 | Sample adult questionnaire |
VIGLONGD | 2002 | Sample adult questionnaire |
VIGLONGD | 2001 | Sample adult questionnaire |
VIGLONGD | 2000 | Sample adult questionnaire |
VIGLONGD | 1999 | Sample adult questionnaire |
VIGLONGD | 1998 | Sample adult questionnaire |