1. Fritz MA, Speroff L (2011) Clinical gynecologic endocrinology and infertility, 8th edn. Wolters Kluwer, Lippincott Williams & Wilkins, Philadelphia
2. Edwards RG, Steptoe PC, Purdy JM (1980) Establishing full-term human pregnancies using cleaving embryos grown in vitro. Br J Obstet Gynaecol 87(9):737–756
3. Check JH et al (1987) The efficacy of progesterone in achieving successful pregnancy: I. Prophylactic use during luteal phase in anovulatory women. Int J Fertil 32(2):135–138
4. Check JH, Chase JS, Nowroozi K, Nazari A (1989) Ovulation induction and pregnancies in women with ovarian failure (reversing menopause). In: Parthenon publishing, recent developments in fertility & sterility, proceedings of the XIII World Congress on fertility and sterility, Marrakesh, October 1989, vol 6. pp 43–47
5. Kerin JF et al (1981) Human luteal phase function following oocyte aspiration from the immediately preovular graafian follicle of spontaneous ovular cycles. Br J Obstet Gynaecol 88(10):1021–1028