DOI:
10.1055/s-00000021
Gesundheitsökonomie & Qualitätsmanagement
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References
Moher D, Liberati A, Tetzlaff J. et al.
Preferred Reporting Items for Systematic Reviews and Meta-Analyses: The PRISMA Statement.
PLoS Med 2009;
6: e1000097
https://doi.org/10.1371/journal.pmed.1000097
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