Related by context. Frequent words. (Click for all words.) 66 umbilical cord blood 64 cord blood 57 umbilical cords 56 Adult stem cells 53 Bone marrow 53 stem cells 52 Stem cells 51 stem cells derived 51 adult stem cells 49 Stem cell 48 Embryonic stem cells 47 regenerative cells 47 ovarian tissue 47 Organ donation 47 oocytes 46 stem cell 46 Embryos 46 Breast milk 46 bone marrow 45 pluripotent stem cells 45 adult stem cell 45 bone marrow stem cells 45 embryonic stem cells 45 Embryonic stem cell 45 Cord Blood 45 fetal tissue 44 embryos 44 bone marrow transplants 44 embryonic cells 44 islet cells 43 Platelets 43 vitro fertilization IVF 43 stem cell transplantation 43 autologous 43 fertility clinics 43 embryo 43 hematopoietic stem cells 42 Folic acid 42 human embryos 42 destroying embryos 42 transfusion 42 cloned embryos 42 gametes 42 transplantation 41 Flu vaccines 41 marrow 41 tissue 41 sperm 41 infertile couples 41 placentas 41 fertilized eggs 41 iPS 41 Bone Marrow 41 fertility treatments 41 cryopreservation 41 sperms 41 hESCs 41 fertilized embryos 40 vitro fertilization 40 amniotic fluid 40 amniocentesis 40 SCNT 40 adipose tissue 40 frozen embryos 40 bone marrow transplantation 40 infertility treatments 40 Radiation therapy 40 Sperm 40 oocyte 40 stem cell transplants 40 blood platelets 40 bone marrow transplant 40 frozen embryo 40 stem cell therapies 39 biologically active 39 IVF 39 platelets 39 breast milk 39 hepatocytes 39 tissues 39 fertilized egg 39 organ transplantation 39 iPS cells 39 donor sperm 39 ovum 39 hematopoietic stem cell 38 Cellulosic ethanol 38 transfusions 38 stem cell transplant 38 mesenchymal stem cells 38 therapeutic cloning 38 progenitor cells 38 aborted fetuses 38 Gift cards 38 iPSCs 38 stem cell therapy 38 insulin producing 38 Debit cards 38 ESCs 38 immunosuppressive drugs 38 CD# + [002]