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APA Citation
Dron, L., Taljaard, M., Cheung, Y. B., Grais, R., Ford, N., Thorlund, K., Jahan, F., Nakimuli-Mpungu, E., Xavier, D., Bhutta, Z. A., Park, J. J. H., & Mills, E. J. (2021). the role and challenges of cluster randomised trials for global health. Lancet, 9(5), e701–e710. http://access.bl.uk/ark:/81055/vdc_100127499788.0x000007