Therefore, in developing and testing questionnaires to be used in studies, researchers need to pilot test the ... Development of methods to characterize the use, in combination or in sequence, of different substances will enhance ... Several panelists made effective use of geocoded maps to vividly display data by drug and geographic areas and for different periods of time. ... visits involving hydrocodone, oxycodone, and methadone increased significantly from 1995 to 2002.
|Title||:||Epidemiologic Trends in Drug Abuse, June 2004: Proceedings|
|Author||:||National Institute on Drug Abuse. Community Epidemiology Work Group. Meeting, National Institute on Drug Abuse. Community Epidemiology Work Group, National Institute on Drug Abuse. Division of Epidemiology and Prevention Research|