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Perspectives on Sexual and Reproductive Health|July 26, 2002
Contraceptive method switching in the United StatesWilliam R Grady, John O G Billy, Daniel H KlepingerThe Journal of Adolescent Health : Official Publication of the Society for Adolescent Medicine|December 4, 2003
Assessment of factors affecting the validity of self-reported health-risk behavior among adolescents: evidence from the scientific literatureNancy D Brener, John O G Billy, William R GradyPerspectives on Sexual and Reproductive Health|June 5, 2009
Sexual risk-taking among adult dating couples in the United StatesJohn O G Billy, William R Grady, Morgan E SillJournal of Biosocial Science|January 19, 2010
The role of relationship power in couple decisions about contraception in the USWilliam R Grady, Daniel H Klepinger, John O G Billy, et al.Pageof 1