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author = {Wu, Jianrong and Xiong, Xiaoping},
title = {Survival trial design and monitoring using historical controls},
journal = {Pharmaceutical Statistics},
volume = {15},
number = {5},
pages = {405-411},
keywords = {group sequential trial design, historical control, log-rank test, information time, sample size, time-to-event},
year = {2016}
}


@article{doi:10.1080/10543406.2019.1684305,
author = {Jianrong Wu and Yimei Li},
title = {Group sequential design for historical control trials using error spending functions},
journal = {Journal of Biopharmaceutical Statistics},
volume = {30},
number = {2},
pages = {351-363},
year  = {2020},
publisher = {Taylor & Francis}
}






