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APA Citation
Kopp‐Schneider, A., Wiesenfarth, M., Witt, R., Edelmann, D., Witt, O., & Abel, U. (n.d.). monitoring futility and efficacy in phase II trials with Bayesian posterior distributions—A calibration approach. Biometrical journal, 61(3), 488–502. http://access.bl.uk/ark:/81055/vdc_100080205546.0x00003a