Related by context. Frequent words. (Click for all words.) 56 placenta 55 umbilical cords 55 umbilical cord 54 fatty tissues 54 Fallopian tubes 54 umbilical cord stem cells 53 placentas 52 stem cells 52 undifferentiated cells 52 amniotic sac 52 collagen fibers 51 afterbirth 51 tissues 51 fatty tissue 50 placental 50 pancreases 50 lymphatic vessels 50 tissue 50 thyroid hormones 50 thyroid glands 50 uterine wall 50 vitro fertilization clinics 49 sperms 49 extract stem cells 49 cryopreserved 49 amniotic fluid 49 endothelial progenitor cells 49 islet cells 49 mesenchymal cells 49 mouse embryos 49 bone marrow stem cells 49 uterine lining 48 pancreatic islet cells 48 Transfusions 48 ovaries 48 unused embryos 48 unfertilized eggs 48 germ cells 48 oocyte 48 womb 48 tubules 48 granulocytes 48 Umbilical cord blood 47 follicles 47 stromal 47 pancreatic cells 47 cells 47 hematopoietic stem cells 47 blood vessels 47 myoblasts 47 gastrointestinal GI tract 47 biological molecules 47 spermatozoa 47 Fetuses 47 fertilized eggs 47 regenerate tissue 47 imprinted genes 47 anaerobic bacteria 47 transplanted tissue 47 uterus 47 fetal tissue 47 Cord blood 47 diabetic mice 47 foreskins 47 urate 47 bloodstreams 47 unfertilized egg 47 ectopic 46 circulatory system 46 atherosclerotic plaques 46 babies 46 amyloid protein 46 prolactin 46 diseased tissues 46 fibrils 46 hematopoietic cell 46 gametes 46 neural stem cells 46 aspirate 46 mouse embryo 46 leftover embryos 46 reproductive hormones 46 diseased arteries 46 phenylalanine 46 platelets 46 lipids 46 ovarian tissue 46 bile acids 46 steroid hormones 46 metabolically active 46 RBCs 46 fallopian tubes 46 fatty substances 46 amyloid plaque 46 diabetic rats 46 ovary 45 fertilized embryos 45 stillborn babies 45 wombs 45 fibrin 45 neonate