title: The many-level value of proofs of concept.
authors.forename: Aubrey D N J
authors.initials: AD
authors.lastname: de Grey
mesh_terms: D000375:Aging; D000818:Animals; D001709:Biotechnology / Q000379:methods / Q000639:trends; D006801:Humans; D051379:Mice; D008822:Mice, Transgenic; D019212:Multimedia; D011639:Public Opinion; D012060:Rejuvenation / Q000502:physiology*; D012107:Research Design; D019098:Telomerase / Q000378:metabolism
chemical_list: D019098:Telomerase