title: Rules on gene therapy are tightened after leukaemia alert.
authors.forename: Sally
authors.initials: S
authors.lastname: Hargreaves
mesh_terms: D005602:France; D015316:Genetic Therapy / Q000009:adverse effects* / Q000592:standards; D006801:Humans; D007938:Leukemia / Q000235:genetics*; D016511:Severe Combined Immunodeficiency / Q000628:therapy*; D006113:United Kingdom