assisted reproductive technology
Definition: originally, a range of techniques for manipulating oocytes and sperm to overcome infertility; encompasses drug treatments to stimulate ovulation, surgical methods for removing oocytes (laparoscopy and ultrasound-guided transvaginal aspiration) and for implanting embryos (zygote intrafallopian transfer or ZIFT), in vitro and in vivo fertilization (artificial insemination and gamete intrafallopian transfer or GIFT), ex utero and in utero fetal surgery, and laboratory regimes for freezing and screening sperm and embryos as well as micromanipulating and cloning embryos.
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