Birgisson, N. E., Zhao, Q., Secura, G. M., Madden, T., & Peipert, J. F. (2015). Positive Testing for Neisseria gonorrhoeae and Chlamydia trachomatis and the Risk of Pelvic Inflammatory Disease in IUD Users. J Womens Health (Larchmt).

Birgisson, Natalia E., Qiuhong Zhao, Gina M. Secura, Tessa Madden, ja Jeffrey F. Peipert. "Positive Testing for Neisseria Gonorrhoeae and Chlamydia Trachomatis and the Risk of Pelvic Inflammatory Disease in IUD Users." J Womens Health (Larchmt) 2015.

Birgisson, Natalia E., et al. "Positive Testing for Neisseria Gonorrhoeae and Chlamydia Trachomatis and the Risk of Pelvic Inflammatory Disease in IUD Users." J Womens Health (Larchmt) 2015.