Steiner, M. J., Lopez, L. M., Grimes, D. A., Cheng, L., Shelton, J., Trussell, J., . . . Dorflinger, L. (2009). Sino-implant (II) - a levonorgestrel-releasing two-rod implant: Systematic review of the randomized controlled trials.

Steiner, Markus J., Laureen M. Lopez, David A. Grimes, Linan Cheng, Jim Shelton, James Trussell, Timothy M.M Farley, et Laneta Dorflinger. Sino-implant (II) - a Levonorgestrel-releasing Two-rod Implant: Systematic Review of the Randomized Controlled Trials. 2009.

Steiner, Markus J., et al. Sino-implant (II) - a Levonorgestrel-releasing Two-rod Implant: Systematic Review of the Randomized Controlled Trials. 2009.