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Physiol Mol Biology Plants: Int J Funct Plant Biology 23(2):249268
Efficacy of the levonorgestrel-releasing intrauterine system in uterine leiomyoma
The fertilization rate (the number of 2PNs divided by the total number of MII oocytes), quality of obtained embryos, implantation rate (the number of intrauterine gestational sacs divided by transferred embryos), as well as clinical pregnancy rate (by detecting fetal heartbeats two weeks following the positive hCG) and ongoing pregnancy rate (a pregnancy documented by ultrasound over 20 gestational weeks that showed the presence of normal fetus)
Sperm parameter improvement does not always translate to increased conception rates in all men with infertility, so it's worth keeping your expectations realistic as you weigh your options
It was added to the Prohibited List in 2022 as a non-approved substance, reflecting its transition from an obscure research compound to a significant "substance of interest" in professional athletics
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