1. |
Al-Fozan H, Al-Khadouri M, Tan SL, et al. A randomized trial of letrozole versus clomiphene citrate in women undergoing superovulation. Fertil Steril, 2004, 82(6): 1561-1563.
|
2. |
Mitwally MFM, Casper RF. Use of an aromatase inhibitor for induction of ovulation in patients with an inadequate response to clomiphene citrate. Fertil Steril, 2001, 75(2): 305-309.
|
3. |
Mitwally M, Biljan M, Casper R. Pregnancy outcome after the use of an aromatase inhibitor for ovarian stimulation. Am J Obstet Gynecol, 2005, 192(2): 381-386.
|
4. |
Juni P, Altman DG, Egger M. Assessing the quality of controlled clinical trials. BMJ, 2001, 323(7303): 42-46.
|
5. |
Stroup DF, Berlin JA, Morton SC, et al. Meta-analysis of observational studies epidemiology: a proposal for reporting. JAMA, 2000, 283(15): 2008-2012.
|
6. |
Cochrane Reviewer’ Handbook 4.1. The Cochrane Collaboration, 2000.
|
7. |
Schulz KF, Chalmers I, Hayes RJ, et al. Empirical evidence of bias.JAMA, 1995, 273(5): 408-421.
|
8. |
Jee BC, Ku SY, Suh CS, et al. Use of letrozole versus clomiphene citrate combined with gonadotropins in intrauterine insemination cycles: a pilot study. Fertil Steril, 2006, 85(6): 1774-1777.
|
9. |
Sh E, Nejad T, Abediasl Z, et al. Comparison of the efficacy of the aromatase inhibitor letrozole and clomiphen citrate gonadotropins in controlled ovarian hyperstimulation: a prospective, simply randomized, clinical trial. J Assist Reprod Genet, 2008, 25(5): 187-190.
|
10. |
Badawy A, Abdel Aal I, Abulatta M. Clomiphene citrate or letrozole for ovulation inductionin women with polycystic ovarian syndrome:a prospective randomized trial. Fertil Steril, 2009, 92(3): 849-852.
|
11. |
Ganesh A, Goswami SK, Chattopadhyay R, et al. Comparison of letrozole with continuous gonadotropins and clomiphene-gonadotrop in combination for ovulation induction in 1387 PCOS women after clomiphene citrate failure: a randomized prospective clinical trial. J Assist Reprod Genet, 2009, 26(1): 19-24.
|
12. |
Atay V, Cam C, Muhcu M, et al. Comparison of Letrozole and Clomiphene Citrate in women with polycystic ovaries undergoing ovarian stimulation. J Int Med Res, 2006, 34(1): 73-76.
|
13. |
Barroso G, Menocal G, Felix H, et al. Comparison of the efficacy of the aromatase inhibitor letrozole and clomiphene citrate as adjuvants to recombinant follicle-stimulating hormone in controlled ovarian hyperstimulation: a prospective, randomized, blinded clinical trial. Fertil Steril, 2006, 85(5): 1428-1431.
|
14. |
Bayar ü, Basaran M, Kiran S, et al. Use of an aromatase inhibitor in patients with polycystic ovary syndrome: a prospective randomized trial. Fertil Steril, 2006, 82(5): 1447-1451.
|
15. |
Begum M, Ferdous J, Begum A, et al. Comparison of efficacy of aromatase inhibitor andclomiphene citrate in induction of ovulation in polycystic ovarian syndrome. Fertil Steril, 2009, 92(3): 853-856.
|
16. |
Sohrabvand F, Ansari Sh, Bagheri M. Efficacy of combined Metformin-Letrozole in comparison with Metformin-Clomiphene citrate in clomiphene-resistant infertile women with polycystic ovarian disease. Hum Reprod, 2006, 21(6): 1432- 1435.
|
17. |
Cortinez I, De Carvalho D, Vantman F, et al. Hormonal profile and endometrial morphology in letrozole-controlled ovarian hyperstimulation in ovulatory infertile patients. Fertil Steril, 2005, 83(1): 110-115.
|
18. |
Fisher SA, Reid RL, Van Vugt DA, et al. A randomized double-blind comparison of the effects of clomiphene citrate and the aromatase inhibitor letrozole on ovulatory function in normal women. Fertil Steril, 2002, 78(2): 280-285.
|
19. |
Kistner RW. Induction of ovulation with clomiphene citrate (clomid). Obstet Gynecol Survey, 1965, 20(6): 873-900.
|
20. |
Heard MJ, Pierce A, Carson SA, et al. Pregnancies following use of metformin for ovulation induction in patients with polycystic ovary syndrome. Fertil Steril, 2002, 77(4): 669-673.
|
21. |
Nestler JE, Jakubowicz DJ, Evans WS, et al. Effects of metformin on spontaneous and clomiphene – induced ovulation in the polycystic ovary syndrome. N Engl J Med, 1998, 338(26): 1876-1880.
|
22. |
FG Samani, L Farzadi, N Nezami, et al. Endometrial and follicular development following letrozole intervention in unexplained infertile patients failed to get pregnant with clomiphene citrate. Arch Gynecol Obstet, 2009, 280(2): 201-205.
|
23. |
RF Casper. letrozole ovulation or superovulation? Fertil Steril, 2003, 80(2): 1335-1337.
|