TY - CONF T1 - Sample estimation for randomised controlled trials with repeated assessment of quality of life: what correlation between baseline and follow up outcomes should we assume? JO - QUALITY OF LIFE RESEARCH PY - 2018/10/01 AU - Walters S AU - Jacques R AU - Xian MTS ED - VL - 27 SP - S34 EP - S34 Y2 - 2025/05/23 ER -