Steiner MJ, Lopez LM, Grimes DA, et al. Sino-implant (II)—a levonorgestrel-releasing two-rod implant: systematic review of the randomized controlled trials. Contraception 2010;81:197–201.
252.
Funk S, Miller MM, Mishell DR Jr, et al. Safety and efficacy of Implanon™, a single-rod implantable contraceptive containing etonogestrel. Contraception 2005;71:319–326.
253.
Power J, French R, Cowan F. Subdermal implantable contraceptives versus other forms of reversible contraceptives or other implants as effective methods of preventing pregnancy. Cochrane Database Syst Rev 2007;3:CD001326.
254.
Darney PD, Patel A, Rosen KM, et al. Safety and efficacy of a single-rod etonogestrel implant (Implanon): results from 11 international clinical trials. Contraception 2009;80:519–526.
255.
Zheng S-S, Zheng H-M, Qian S-Z et al. A randomized multicenter study comparing the efficacy and bleeding patterm of a single-rod (Implanon) and a six-capsule (Norplant) hormonal contraceptive implant. Contraception 1999;60:1–8.
256.
Brito MB, Ferriani RA, Quintana SM, et al. Safety of the etonogestrel-releasing implant during the immediate postpartum period: a pilot study. Contraception 2009;80:519–26.
257.
Beerthuizen R, van Beek A, Massai R, et al. Bone mineral density during long-tgerm use of the progestogen contraceptive implant Implanon compared to a nonhormonal method of contraception. Hum Reprod 2000;15:118–122.
258.
Hidalgo MM, Lisondo C, Juliato CT, et al. Ovarian cysts in users of Implanon and Jadelle subdermal contraceptive implants. Contraception 2006;73:532–536.
259.
Egberg N, van Beek A, Gunnervik C, et al. Effects on the hemostatic system and liver function in relation to Implanon and Norplant. A prospective randomized clinical trial. Contraception 1998;58:93– 98 260.
Vieira CS, Ferriani RA, Garcia AA, et al. Use of the etonogestrelreleasing implant is associated with hypoactivation of the coagulation cascade. Hum Reprod 2007;22:2196–2201.
261.
Petitti DB, Siscovick DS, Sidney S, et al. Norplant implants and cardiovascular disease. Contraception 1998;57:361–362.
262.
Haspells AA. Emergency contraception: a review. Contraception 1994;50:101–108.
263.
Yuzpe AA. Postcoital contraception. Clin Obstet Gynecol 1984;11: 787–797.
264.
Anonymous. Randomized controlled trial of levonorgestrel versus the Yuzpe regimen of combined oral contraceptives for emergency contraception. Task Force on Postovulatory Methods of Fertility Regulation. Lancet 1998;352:428–433.
265.