title: Gene therapy--so near and yet so far away.
mesh_terms: D000243:Adenosine Deaminase / Q000172:deficiency / Q000235:genetics; D000818:Animals; D001853:Bone Marrow; D030342:Genetic Diseases, Inborn / Q000235:genetics / Q000628:therapy*; D005818:Genetic Engineering; D005822:Genetic Vectors; D000882:Haplorhini; D006801:Humans; D051379:Mice
chemical_list: D000243:Adenosine Deaminase