TY - JOUR T1 - Sample Size Estimation for Trials and Other Two Group Comparisons UR - http://dx.doi.org/10.4135/9781529741636 PY - 2020/06/15 AU - Walters S AU - Simpson R AU - Jacques R ED - DO - DOI: 10.4135/9781529741636 PB - SAGE Publications Ltd Y2 - 2025/04/09 ER -