Browse by Study
- National Comorbidity Survey: Baseline (NCS-1), 1990-1992 (1)
- National Pregnancy and Health Survey: Drug Use Among Women Delivering Live Births, 1992 (1)
- National Youth Survey [United States]: Wave I, 1976 (1)
- National Youth Survey [United States]: Wave II, 1977 (1)
- National Youth Survey [United States]: Wave III, 1978 (1)
- National Youth Survey [United States]: Wave IV, 1979 (1)
- National Youth Survey [United States]: Wave VII, 1987 (1)
- National Youth Survey [United States]: Wave V, 1980 (1)
- National Youth Survey [United States]: Wave VI, 1983 (1)