Trends in the Population Prevalence of People Who Inject Drugs in US Metropolitan Areas 1992–2007

• Barbara Tempalski ,

  * E-mail: tempalski@ndri.org

  Affiliation Institute for AIDS Research, National Development and Research Institutes, Inc. (NDRI), New York, New York, United States of America

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• Enrique R. Pouget,

  Affiliation Institute for AIDS Research, National Development and Research Institutes, Inc. (NDRI), New York, New York, United States of America

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• Charles M. Cleland,

  Affiliations Institute for AIDS Research, National Development and Research Institutes, Inc. (NDRI), New York, New York, United States of America, College of Nursing, New York University (NYU), New York, New York, United States of America

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• Joanne E. Brady,

  Affiliation Department of Epidemiology, Columbia University, New York, New York, United States of America

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• Hannah L. F. Cooper,

  Affiliation Behavioral Sciences and Health Education, Rollins School of Public Health at Emory University, Atlanta, Georgia, United States of America

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• H. Irene Hall,

  Affiliation Centers for Disease Control, Division of HIV/AIDS Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, Atlanta, Georgia, United States of America

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• Amy Lansky,

  Affiliation Centers for Disease Control, Division of HIV/AIDS Prevention, Surveillance, Epidemiology and Laboratory Science, Atlanta, Georgia, United States of America

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• Brooke S. West,

  Affiliation Institute for AIDS Research, National Development and Research Institutes, Inc. (NDRI), New York, New York, United States of America

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• Samuel R. Friedman

  Affiliations Institute for AIDS Research, National Development and Research Institutes, Inc. (NDRI), New York, New York, United States of America, Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America

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