TY - JOUR T1 - Using willingness to pay to value close substitutes: carrier screening for cystic fibrosis revisited. JO - Health Econ PY - 1997/03/01 AU - Donaldson C AU - Shackley P AU - Abdalla M ED - DO - DOI: 10.1002/(sici)1099-1050(199703)6:2<145::aid-hec253 VL - 6 IS - 2 SP - 145 EP - 159 Y2 - 2024/12/22 ER -