title: Medicine: blastomeres and stem cells.
authors.forename: Joe Leigh
authors.initials: JL
authors.lastname: Simpson
mesh_terms: D000818:Animals; D001757:Blastomeres / Q000166:cytology*; D002460:Cell Line; D033041:Embryo Research / Q000941:ethics; D053595:Embryonic Stem Cells / Q000166:cytology*; D005307:Fertilization in Vitro; D006801:Humans; D051379:Mice; D019836:Preimplantation Diagnosis