title: Reference standard for gene therapy closer.
authors: M
authors: M
authors: Greener
mesh_terms: D000229:Dependovirus / Q000235:genetics* / Q000502:physiology; D005060:Europe; D015316:Genetic Therapy / Q000592:standards*; D005822:Genetic Vectors / Q000592:standards*; D007391:International Cooperation; D012015:Reference Standards; D012106:Research / Q000592:standards; D014481:United States