TY - JOUR T1 - Implicit versus explicit ranking: on inferring ordinal preferences for health care programmes based on differences in willingness-to-pay. JO - J Health Econ PY - 2005/09/01 AU - Olsen JA AU - Donaldson C AU - Shackley P AU - EuroWill Group ED - DO - DOI: 10.1016/j.jhealeco.2005.04.001 VL - 24 IS - 5 SP - 990 EP - 996 Y2 - 2024/12/22 ER -