TY - CONF T1 - Extending the QALY project in the United States: face and content validity of items for a new preference-based measure JO - QUALITY OF LIFE RESEARCH PY - 2019/10/01 AU - Pickard AS AU - Monteiro A AU - Kuharic M AU - Mukuria C AU - Peasgood T AU - Brazier J ED - VL - 28 SP - S165 EP - S165 Y2 - 2025/04/09 ER -