TY - JOUR T1 - Sample size requirements to estimate key design parameters from external pilot randomised controlled trials: a simulation study JO - Trials UR - http://eprints.whiterose.ac.uk/88744/ PY - 2014/07/03 AU - Teare M AU - Dimairo M AU - Shephard N AU - Hayman A AU - Whitehead A AU - Walters S ED - DO - DOI: 10.1186/1745-6215-15-264 VL - 15 IS - 1 SP - 264 EP - 264 Y2 - 2024/12/22 ER -