DolanP.Aggregating health state valuations. Journal of Health Services Research and Policy1997; 2: 160–165.
2.
NordE.Health status index models for use in resource allocation decisions. A critical review in the light of observed preferences for social choice. International Journal of Technology Assessment in Health Care1996; 12: 31–44.
3.
Brooks R, with the EuroQol Group. EuroQol: The current state of play. Health Policy1996; 37: 53–72.