TY - JOUR T1 - Methods for determining sample sizes for studies involving health-related quality of life measures: A tutorial JO - Health Services and Outcomes Research Methodology PY - 2001/01/01 AU - Walters SJ AU - Campbell MJ AU - Paisley S ED - DO - DOI: 10.1023/A:1020102612073 VL - 2 IS - 2 SP - 83 EP - 99 Y2 - 2024/12/26 ER -