title: Gene targeting: tapping the cellular telephone.
authors.forename: M
authors.initials: M
authors.lastname: Capecchi
mesh_terms: D000818:Animals; D002460:Cell Line; D015723:Gene Library; D005796:Genes; D013762:Tetrahydrofolate Dehydrogenase / Q000235:genetics
chemical_list: D013762:Tetrahydrofolate Dehydrogenase