Viewing of Internet-Based Sexually Explicit Media as a Risk Factor for Condomless Anal Sex among Men Who Have Sex with Men in Four U.S. Cities

• Eric W. Schrimshaw ,

  * E-mail: es458@cumc.columbia.edu

  Affiliation Department of Sociomedical Sciences, Mailman School of Public Health, Columbia University, New York, New York, United States of America

  http://orcid.org/0000-0003-2755-1796

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• Nadav Antebi-Gruszka,

  Affiliation Department of Sociomedical Sciences, Mailman School of Public Health, Columbia University, New York, New York, United States of America

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• Martin J. Downing Jr.

  Affiliation Research and Evaluation, Public Health Solutions, Inc., New York, New York, United States of America

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