Lloyd Johnston

• Use of licit and illicit drugs by America's high school students, 1975-1984
• Conducting followup research on drug treatment programs
• Drug use among American high school seniors, college students, and young adults, 1975-1990
• Drugs and American youth
• Monitoring the future national survey results on drug use, 1975-2000
• National survey results on drug use from the Monitoring the Future study, 1975-1992 (NIH publication)
• National survey results on drug use from the Monitoring the Future Study, 1975-1993
• National survey results on drug use from the Monitoring the Future study, 1975-1994
• National Survey Results on Drug Use from the Monitoring the Future Study, 1975-1995 (Nih Publication)
• National survey results on drug use from the Monitoring the Future study, 1975-1997
• National survey results on drug use from the Monitoring the Future study, 1975-1998
• Smoking, drinking, and illicit drug use among American secondary school students, college students, and young adults, 1975-1991