TY - JOUR T1 - Practical guide to sample size calculations: an introduction JO - Pharmaceutical Statistics UR - https://eprints.whiterose.ac.uk/id/eprint/97115 UR - http://dx.doi.org/10.1002/pst.1709 PY - 2015/11/20 AU - Flight L AU - Julious SA ED - DO - DOI: 10.1002/pst.1709 PB - Wiley VL - 15 IS - 1 SP - 68 EP - 74 Y2 - 2025/12/06 ER -