Related by context. Frequent words. (Click for all words.) 49 unfertilized egg 46 implant 43 pluripotent cells 43 intraocular lens 43 umbilical cord stem cells 43 implanted 42 indwelling 42 cloned embryo 42 extracted stem cells 41 resorbable 41 embryos 41 teratomas 41 fibroblast cells 41 implants 41 INVOcell 41 bioabsorbable 41 blastocysts 41 cryopreserved 41 allograft 41 cloned stem cells 40 corneal tissue 40 embryo 40 unfertilized eggs 40 implantations 40 implantable cardioverter defibrillator ICD 40 frozen embryo 40 IVF embryos 40 Fallopian tubes 40 teratoma 40 Chipped offAussies set 40 gametes 40 undifferentiated cells 39 uteruses 39 ovum 39 zygote 39 transgenic mouse 39 fertilized eggs 39 synthetic genome 39 female reproductive organs 39 Implanting 38 ovary 38 stem cells 38 fertilized embryos 38 bone grafts 38 Umbilical cord blood 38 Implantation 38 blastocyst 38 transplanted tissue 38 leftover embryos 38 microsurgical 37 follicle stimulating hormone 37 somatic cell 37 surgically 37 Wheat gluten 37 ovulated 37 oocyte 37 fertilized egg 37 bone marrow stem cell 37 oocytes 37 catheter inserted 37 ventricular assist 37 spermatozoa 37 mouse embryos 37 catheter 36 myoblasts 36 genetically matched 36 amniotic fluid 36 amniotic sac 36 wombs 36 ovarian stimulation 36 embryo transfers 36 gamete 36 chimeras 36 neurostimulator 36 autologous stem cells 36 fertility clinic 36 blastocyst stage 36 hip joints 36 fetal stem cells 35 lentivirus 35 allografts 35 prostate tissue 35 mesenchymal cells 35 microelectrodes 35 unfertilized human 35 semen sample 35 minimally invasive technique 35 Artificial Heart 35 implantable device 35 frozen embryos 35 cloned embryos 35 Adult Stem Cells 35 artificial cornea 35 xenograft 35 donor sperm 35 follicles 35 sperms 35 ultrasound 35 testicular tissue 35 HeartMate II 35 cardiac defibrillators