Pregnancies in humans by fertilization in vitro and embryo transfer in the controlled ovulatory cycle

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Science  08 May 1981:
Vol. 212, Issue 4495, pp. 681-682
DOI: 10.1126/science.7221557


Normal pregnancies have been established in four women with tubal infertility by fertilization in vitro, embryo culture, and embryo transfer after stimulation of follicular growth with clomiphene citrate. In three of these women the time of oocyte maturation was controlled by human chorionic gonadotropin. This procedure for the control of ovulatory response has many advantages when compared with the previously successful method of using the natural ovulatory cycle.