Related by context. Frequent words. (Click for all words.) 61 chromosomal abnormalities 60 oocytes 58 chromosome abnormalities 56 spermatozoa 56 birthweight 56 cryopreserved 55 follicle stimulating hormone 55 ovulate 55 embryo transfers 55 imprinted genes 54 Embryos 54 embryos 54 diploid 54 aneuploidy 54 genetic abnormalities 53 unfertilized eggs 53 germ cells 53 undergoing IVF 53 sperm 53 vaginal secretions 53 ovarian stimulation 53 ovarian function 53 embryo 53 mouse embryos 53 neural tube defect 52 ovaries 52 blastocyst stage 52 premature menopause 52 IVF embryos 52 ambiguous genitalia 52 trisomy 52 congenital anomalies 52 unexplained infertility 52 IVF cycles 51 blastocyst 51 chorionic villus sampling 51 somatic cells 51 oocyte 51 ovarian 51 somatic cell 51 rhesus 50 polycystic ovary syndrome 50 sperms 50 difficulty conceiving 50 ovulation 50 blastocysts 50 ovary 50 ectopic pregnancies 50 mammary tumors 50 donor sperm 50 exclusively breastfed 50 donor insemination 49 epididymis 49 gametes 49 BRCA1 gene 49 ovarian tissue 49 breastfed babies 49 gestational age 49 intrauterine 49 testes 49 gamete 49 congenital abnormalities 49 cloned embryos 49 embryos implanted 49 Fetuses 49 preimplantation genetic diagnosis 49 granulocytes 49 fertilized eggs 49 vitro 49 heterozygous 48 Artificial insemination 48 germline 48 transvaginal ultrasound 48 genital tract 48 gestational 48 BRCA2 gene 48 pancreases 48 cultured cells 48 NF1 48 prolactin 48 genetic defects 48 sperm motility 48 replacement heifers 48 unfertilized human 48 overexpressing 48 neonate 48 facilitates umbilical cord 48 lysozyme 48 follicles 48 spontaneous abortions 48 Mitochondrial DNA 47 weeks gestation 47 pg ml 47 undifferentiated cells 47 serum concentrations 47 reproductive hormones 47 testis 47 vaginal cancers 47 gonadotropin 47 BRCA2 mutations 47 breastfeeds