Related by context. Frequent words. (Click for all words.) 60 ovarian tissue 59 sperm 59 oocytes 57 tissue 56 testes 55 prostate tissue 55 stem cells 55 ovary 55 bone marrow stem cells 54 oocyte 53 testis 53 fatty tissue 53 mouse embryos 52 somatic cells 52 umbilical cord blood 52 fetal tissue 52 adipose tissue 52 ovaries 52 stem cells derived 51 neural stem cells 51 tissue samples 51 placentas 51 bone marrow 50 embryo 50 thymus 50 embryos 50 blastocysts 49 breast tissue 49 livers 49 tissues 49 prostates 48 sperms 48 islet cells 48 autologous 48 gametes 48 follicles 48 germ cells 48 regenerative cells 48 cloned embryo 48 progenitor cells 47 mesenchymal stem cells 47 muscle tissue 47 dystrophin 47 ex vivo 47 hepatocytes 47 adipocytes 47 lung tumors 47 hematopoietic 47 Cord blood 47 reproductive tract 47 marrow 47 hematopoietic stem cells 46 tumors 46 adult stem cells 46 myocardium 46 prostate gland 46 Adult stem cells 46 fertilized embryos 46 malignant cells 46 embryonic cells 45 ovarian 45 Embryos 45 cord blood 45 allogeneic 45 allograft 45 tumor 45 placental 45 pancreatic cells 45 spinal fluid 45 cardiomyocytes 45 mammary glands 45 fibroblasts 45 umbilical cords 45 blastocyst 45 vasculature 45 mutant mice 45 amniotic fluid 45 testicular 45 endometrium 44 breast tumors 44 subcutaneous fat 44 pancreas 44 malignant tumors 44 ES cells 44 cysts 44 cultured cells 44 cryopreservation 44 reproductive organs 44 liver 44 gland 44 pancreatic 44 CD# + [002] 44 prostate tumor 44 lymph node 44 ova 44 genistein 44 keratinocytes 43 needle biopsy 43 transgenic mice 43 HSCs 43 iPSCs