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PRISMA Study Flow Diagram. EudraCT: European Union Drug Regulating Authorities Clinical Trials; ICTRP: International Clinical Trials Registry Platform; CCRCT: Cochrane Central Register of Controlled Trials; CDSR: Cochrane Database of Systematic Reviews; CT: clinical trial; ATMP: advanced therapy medicinal product; GTMP: gene therapy medicinal product; RCT: randomized clinical trial; PRISMA: Preferred Reporting Items for Systematic Reviews and Meta-Analyses
