Liu A, Wu C, Yu K, & Gehan E. (2005). Supplementary analysis of probabilities at the termination of a group sequential phase II trial. Statistics in Medicine, 24:1009-1027. [Abstract]
Liu A, Hall WJ, Yu KF, & Wu CQ. (2006). Estimation following a group sequential test for distributions in the one-parameter exponential family. Statistica Sinica, 16:165-181.
Liu A, Schisterman EF, & Wu CQ. (2006). Multistage evaluation of measurement error in a reliability study. Biometrics, 62(4):1190-1196. [Abstract]
Liu A, Wu CQ, Yu K, & Yuan V. (2007). Estimation following a multivariate group sequential test. Journal of Multivariate Analysis, 98:505-516.
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