5Loutradis D, Drakakis P, Vomvolaki E, et al. Different ovarian stim- ulation protocols for women with diminished ovarian reserve [ J ]. J Assist Reprod Genet,2007, 24(12) :597 -611.
6Biljan M, Mahutte N, Dean N, et al. Effects of pretreatment with an oral contraceptive on the time required to achieve pituitary suppression with gonadotropin - releasing hormone analogues and on subsequent pregnancy rates [ J ]. Fertil Steril, 1998, 70 ( 6 ) : 1063 - 1069.
7Duvan CI, Berker B, Turhan NO, et al. Oral contraceptive pretreat- ment does not improve outcome in microdose gonadotrophin - releasing hormone agonist protocol among poor responder intracytoplasmic sperm injection patients [ J]. J Assist Reprod Genet, 2008, 25 (2 -3 ) :89 -93.
8Fanchin R, Salomon L, Castelo - Branco A, et al. Luteal estradiol pre- treatment coordinates follicular growth during controlled ovarian hyperstimulation with GnRH antagonists [J]. Hum Reprod, 2003, 18 (12) :2698 -2703.
9Dragisic KG, Davis OK, Fasouliotis SJ,et al. Use of a luteal estradiol patch and a gonadotropin releasing hormone antagonist suppression protocol before gonadotropin stimulation for in vitro -fertilization in poor responders [ J ]. Fertil Steril, 2005, 84 (4) : 1023 - 1026.