Joseph GfroererJoseph Gfroerer was responsible for analysis and supervision of the National Survey on Drug Use and Health for more than three decades as a statistician at the National Institute on Drug Abuse (NIDA) and the Substance Abuse and Mental Health ServicesAdministration (SAMHSA). A widely recognized expert in methods for substance use surveys, he authored dozens of peer-reviewed journal articles and book chapters, and hundreds of government reports on survey methodology and substance use epidemiology. A member of the American Statistical Association for over thrity-five years, he has received numerous awards from NIDA, SAMHSA, the White House, and the American Public Health Association for his work on the survey. Read More Read Less