1. Quality adjusted life years (QALYs), utility theory and healthy years equivalent;Mehrez;Medical Decision Making,1989
2. Methods for the Economic Evaluation of Health Care Programmes;Drummond,1987
3. Life: quality, value and justice;Harris;Health Policy,1988
4. Measurement of health state utilities for economic appraisal;Torrance;Journal of Health Economics,1986
5. Should QALYs be programme-specific?;Donaldson;Journal of Health Economics,1988