June 2014 News Release Women Wishing to Avoid Pregnancy Often Use Withdrawal in Conjunction with Other Contraceptive Methods
June 2014 Policy Analysis Pay-for-Performance: Making It Work for Safety-Net Family Planning Centers and the Clients They Serve Adam Sonfield Guttmacher Policy Review
May 2014 Research Article Pull and pray or extra protection? Contraceptive strategies involving withdrawal among US adult women Rachel K. Jones and Laura D. Lindberg Contraception