REFERENCES
- Lan , K.K.G. and DeMets , D.L. 1983 . Discrete Sequential Boundaries for Clinical Trials . Biometrika , 70 : 659 – 663 .
- Proschan , M. and Hunsberger , S. 1995 . Design Extension of Studies Based on Conditional Power . Biometrics , 51 : 1315 – 1324 .
- Cui , L. , Hung , J. and Wang , S. 1999 . Modification of Sample Size in Group Sequential Clinical Trials . Biometrics , 55 : 853 – 857 .
- Herson , J. and Wittes , J. 1993 . The Use of Interim Analysis for Sample Size Adjustment . Drug Inf. J. , 27 : 753 – 760 .
- Lan , K.K.G. and Trost , D.C. 1997 . Estimation of Parameters and Sample Size Reestimation . ASA Proc. , : 48 – 51 . Biopharmaceutical Section
- Shun , Z. , Yuan , W. , Brady , E.W. and Hsu , H. 2001 . Type-I Error in the Sample Size Reestimation Based on Observed Treatment Difference . Stat. Med. , 20 : 497 – 513 .
- Shun , Z. 2001 . Sample Size Reestimation in Clinical Trials . Drug Inf. J. , 35 : 1409 – 1422 .
- Lan , K.K.G. , Simon , R. and Halperin , M. 1982 . Stochastically Curtailed Test in Long-Term Clinical Trials . Commun. Stat.—Sequential Anal. , 1 ( 3 ) : 207 – 219 .
- Lan , K.K.G. and Wittes , J. 1988 . The B-Value: A Tool for Monitoring Data . Biometrics , 44 : 579 – 585 .
- Lin , D.Y. , Yao , Q. and Ying , Z. 1999 . A General Theory on Stochastic Curtailment for Censored Survival Data . JASA , 94 ( 446 ) : 510 – 521 .