HB. Chin, TA. Sipe, R. Elder, SL. Mercer i inni. The effectiveness of group-based comprehensive risk-reduction and abstinence education interventions to prevent or reduce the risk of adolescent pregnancy, human immunodeficiency virus, and sexually transmitted infections: two systematic reviews for the Guide to Community Preventive Services. „Am J Prev Med”. 42 (3), s. 272-94, Mar 2012. DOI: 10.1016/j.amepre.2011.11.006. PMID: 22341164.
J. Santelli, MA. Ott, M. Lyon, J. Rogers i inni. Abstinence and abstinence-only education: a review of U.S. policies and programs. „J Adolesc Health”. 38 (1), s. 72-81, Jan 2006. DOI: 10.1016/j.jadohealth.2005.10.006. PMID: 16387256.
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HB. Chin, TA. Sipe, R. Elder, SL. Mercer i inni. The effectiveness of group-based comprehensive risk-reduction and abstinence education interventions to prevent or reduce the risk of adolescent pregnancy, human immunodeficiency virus, and sexually transmitted infections: two systematic reviews for the Guide to Community Preventive Services. „Am J Prev Med”. 42 (3), s. 272-94, Mar 2012. DOI: 10.1016/j.amepre.2011.11.006. PMID: 22341164.
J. Santelli, MA. Ott, M. Lyon, J. Rogers i inni. Abstinence and abstinence-only education: a review of U.S. policies and programs. „J Adolesc Health”. 38 (1), s. 72-81, Jan 2006. DOI: 10.1016/j.jadohealth.2005.10.006. PMID: 16387256.
