title: A world of difference.
authors.forename: P
authors.initials: P
authors.lastname: Aldhous
mesh_terms: D001690:Biological Science Disciplines; D019976:Cloning, Organism; D004622:Embryo, Mammalian / Q000166:cytology; D006801:Humans; D012106:Research / Q000331:legislation & jurisprudence; D013234:Stem Cells