title: Dolly's death leaves researchers woolly on clone ageing issue.
authors.forename: Jim
authors.initials: J
authors.lastname: Giles
authors.forename: Jonathan
authors.initials: J
authors.lastname: Knight
mesh_terms: D000375:Aging / Q000502:physiology*; D000818:Animals; D019976:Cloning, Organism / Q000009:adverse effects*; D005260:Female; D006262:Health; D008017:Life Expectancy; D051379:Mice; D012756:Sheep / Q000502:physiology*