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Showing 1 - 10 results of 10 for search '"Principal investigator"', query time: 0.04s Refine Results
  1. 1
    The Monitoring the Future national results on adolescent drug use : overview of key findings, 1999
    by Johnston, Lloyd
    Published 2000
    Government Document Book
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  2. 2
    Use of licit and illicit drugs by America's high school students, 1975-1984
    by Johnston, Lloyd
    Published 1985
    Government Document Book
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  3. 3
    Drug use, drinking, and smoking : national survey results from high school, college, and young adults populations, 1975-1988
    Government Document Book
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  4. 4
    National trends in drug use and related factors among American high school students and young adults, 1975-1986
    by Johnston, Lloyd
    Published 1987
    Government Document Book
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  5. 5
    National survey results on drug use from the Monitoring the Future study, 1975-1995
    by Johnston, Lloyd
    Published 1996
    Government Document Book
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  6. 6
    National survey results on drug use from the Monitoring the Future study, 1975-1994
    by Johnston, Lloyd
    Published 1995
    Government Document Book
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  7. 7
    National survey results on drug use from the Monitoring the Future study, 1975-1992
    by Johnston, Lloyd
    Published 1993
    Government Document Book
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  8. 8
    Highlights from student drug use in America, 1975-1980
    by Johnston, Lloyd
    Published 1981
    Government Document Book
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  9. 9
    Drug use among American high school seniors, college students, and young adults, 1975-1990
    by Johnston, Lloyd
    Published 1991
    Government Document Book
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  10. 10
    Smoking, drinking, and illicit drug use among American secondary school students, college students, and young adults, 1975-1991
    by Johnston, Lloyd
    Published 1992
    Government Document Book
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