| Sharon Sznitman Student drug testing in the context of positive and negative school climates: results from a national surveySharon R Sznitman School of Public Health, University of Haifa, Eshkol Tower, 31905, Haifa, Israel J Youth Adolesc 41:146-55. 2012 Long term effects of community-based STI screening and mass media HIV prevention messages on sexual risk behaviors of African American adolescentsSharon Sznitman Annenberg Public Policy Center, University of Pennsylvania, Philadelphia, 19104 3806, USA AIDS Behav 15:1755-63. 2011 Using culturally sensitive media messages to reduce HIV-associated sexual behavior in high-risk African American adolescents: results from a randomized trialSharon Sznitman Annenberg Public Policy Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104 6220, USA J Adolesc Health 49:244-51. 2011 Mass media as an HIV-prevention strategy: using culturally sensitive messages to reduce HIV-associated sexual behavior of at-risk African American youthDaniel Romer Adolescent Risk Communication Institute, Annenberg Public Policy Center, University of Pennsylvania, 202 South 36th Street, Philadelphia, PA 19104 3806, USA Am J Public Health 99:2150-9. 2009 Can adolescents learn self-control? Delay of gratification in the development of control over risk takingDaniel Romer Annenberg Public Policy Center, University of Pennsylvania, Philadelphia, PA, USA Prev Sci 11:319-30. 2010
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