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APA Citation
Rejon-Parrilla, J. C., Salcher-Konrad, M., Nguyen, M., Davis, K., Jonsson, P., & Naci, H. (n.d.). can we rely on non-randomised studies? Findings from a meta-epidemiological review. European journal of public health, 29, . http://access.bl.uk/ark:/81055/vdc_100097087502.0x00002a