title: Sounding boards. Gene therapy in human beings: when is it ethical to begin?
mesh_terms: D000755:Anemia, Sickle Cell / Q000628:therapy; D000818:Animals; D002986:Clinical Trials as Topic; D004274:DNA, Recombinant; D004992:Ethics, Medical; D005786:Gene Expression Regulation; D005796:Genes; D005818:Genetic Engineering; D005914:Globins / Q000235:genetics; D006454:Hemoglobins / Q000235:genetics; D006805:Human Experimentation; D006801:Humans; D051379:Mice; D011995:Recombination, Genetic; D012306:Risk; D013789:Thalassemia / Q000628:therapy
chemical_list: D004274:DNA, Recombinant; D006454:Hemoglobins; D005914:Globins