Related by context. Frequent words. (Click for all words.) 59 human embryonic stem 59 embryonic stem cell 55 embryonic stem cells 53 human embryos 52 embryonic cells 52 Embryonic stem cell 52 stem cell research 50 stem cell 49 Embryonic Stem Cell 49 stem cells derived 48 embryos 48 SCNT 47 cloned embryos 46 therapeutic cloning 46 federally funded embryonic stem 46 destroying embryos 46 ESCR 46 hESC 46 stem cells 45 Stem Cell Research 45 ESCs 45 fertilized embryos 44 adult stem cells 44 National Nanotechnology Initiative 43 embryo 43 Embryonic stem cells 42 Embryos 42 somatic cell nuclear 42 chimeras 41 reproductive cloning 41 federally funded 41 human cloning 41 mouse embryonic stem 41 Adult stem cells 41 iPSCs 41 stem cell therapies 41 pluripotent stem cells 41 ES cells 40 adult stem cell 40 induced pluripotent stem cells 40 transgenic animals 40 Stem Cell 40 hESCs 40 Terrorist Surveillance Program 39 hydrogen fuel 39 cloned embryo 39 STTR 39 Stem cell 39 embryonic 39 warrantless wiretaps 39 human neural stem 39 cloning 38 stem cell transplantation 38 Stem Cells 38 Bioethics 38 Military Commissions Act 38 torture memos 38 warrantless surveillance 37 harsh interrogation tactics 37 iPS cells 37 biomedical research 37 bone marrow transplantation 37 frozen embryos 37 hydrogen powered 37 Stem cells 37 memos detailing 37 blastocysts 37 cell transplantation 37 immunotherapies 37 Jay Bybee 37 Partial Birth Abortion Ban 36 genetically engineered mice 36 CIA interrogators 36 Tissue Engineering 36 zygote 36 interrogation methods 36 Bush 36 recombinant DNA 36 Gene Therapy 36 NIH 36 somatic cells 36 bone marrow stem cells 36 fetal tissue 36 blastocyst 36 harsh interrogation techniques 36 Bipartisan Campaign Reform Act 35 Detainee Treatment Act 35 Emergency Economic Stabilization 35 Embryonic 35 PL #-# [001] 35 EESA 35 genetically altered 35 flu vaccines 35 chimeric 35 gene therapy 35 electronic eavesdropping 35 Third Frontier 35 vitro fertilization 35 Human Genome Project 35 Geron Corporation 35 warrantless domestic