enero 1, 2007 Research Article Explaining Recent Declines in Adolescent Pregnancy in the United States: The Contribution of Abstinence and Improved Contraceptive Use John S. Santelli, Susheela Singh, Laura D. Lindberg and Lawrence B. Finer American Journal of Public Health
diciembre 1, 2006 Research Article Changes in Formal Sex Education: 1995-2002 Laura D. Lindberg, John S. Santelli and Susheela Singh Perspectives on Sexual and Reproductive Health
junio 5, 2006 Research Article Second-Trimester Abortion: Logistics and Lack of Symptoms Are Factors —P. Doskoch Perspectives on Sexual and Reproductive Health