TY - JOUR T1 - Assurance calculations for planning clinical trials with time-to-event outcomes JO - Statistics in Medicine UR - https://eprints.whiterose.ac.uk/79488/ PY - 2014/01/15 AU - Ren S AU - Oakley JE ED - DO - DOI: 10.1002/sim.5916 VL - 33 IS - 1 SP - 31 EP - 45 Y2 - 2024/12/22 ER -