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DeMets, D.L., Furberg, C.D., Friedman, L.M. (2006). Lessons Learned. In: DeMets, D.L., Furberg, C.D., Friedman, L.M. (eds) Data Monitoring in Clinical Trials. Springer, New York, NY. https://doi.org/10.1007/0-387-30107-0_2

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