Harper, C. C., Stratton, L., Raine, T. R., Thompson, K., Henderson, J. T., Blum, M., . . . Speidel, J. J. (2013). Counseling and provision of long-acting reversible contraception in the US: National survey of nurse practitioners.

Harper, Cynthia C., Laura Stratton, Tina R. Raine, Kirsten Thompson, Jillian T. Henderson, Maya Blum, Debbie Postlethwaite, và J Joseph Speidel. Counseling and Provision of Long-acting Reversible Contraception in the US: National Survey of Nurse Practitioners. 2013.

Harper, Cynthia C., et al. Counseling and Provision of Long-acting Reversible Contraception in the US: National Survey of Nurse Practitioners. 2013.