Related by context. Frequent words. (Click for all words.) 68 ovulate 62 ovarian function 57 ovulation 57 menstruate 56 estrus 56 oocytes 55 ectopic pregnancies 55 undergoing IVF 54 ovulating 54 bacterial vaginosis 54 embryos implanted 54 ovary 53 artificially inseminated 53 menstrual cycle 53 spermatozoa 53 estradiol 53 IVF cycles 53 menses 53 ovaries 53 progesterone 52 inseminated 52 prenatally 52 premenopausal 52 polycystic ovary syndrome 52 spontaneous abortions 52 heavy menstrual bleeding 52 germ cells 51 exclusively breastfed 51 reproductive hormones 51 ectopic 51 genistein 51 estrogen hormone 51 fertilized 51 sperm motility 51 ovaries removed 50 conceive naturally 50 diploid 50 oocyte 50 pregnant mares 50 female reproductive organs 50 fertilized eggs 50 menarche 50 sperms 50 pregnancy 50 neonate 50 adenoma 50 fertility 49 chromosomal abnormalities 49 preterm delivery 49 female hormone estrogen 49 ovarian 49 cloned embryo 49 pre menopausal 49 aromatase 49 hormone progesterone 49 diabetic mice 49 mouse embryos 49 biopsied 49 miscarried 49 genital tract 49 miscarry 49 follicles 49 estrogens 48 Lun Lun 48 ejaculate 48 prolactin 48 somatic cell 48 hormone 48 nmol L 48 ACTH 48 menstrual cycles 48 blastocyst 48 chromosomal abnormality 48 gestational 48 immunosuppressed 48 fertilization 48 fetu 48 prostaglandin 48 estrogen receptor negative 48 fertilized egg 48 transplanted tissue 48 IVF treatment 48 lactase 48 cesarean delivery 47 BRCA1 gene 47 aneuploidy 47 reproductive tract 47 uric acid levels 47 embryo 47 colostrum 47 allogeneic stem cell 47 heterozygous 47 embryos 47 ovarian tissue 47 infertile 47 genetic abnormality 47 oral contraception 47 progestins 47 genetic abnormalities 47 IUI 47 testis