Walker, Melvyn D.; Salek, Sam S.; Bayer, Antony J. - In: PharmacoEconomics 14 (1998) 5, pp. 499-530
. Quality-of-life (QOL) assessment is unique among these methods, because the QOL concept itself includes a subjective component … that is fundamental to its measurement. It could be argued that measuring quality of life is just as important as measuring … when assessing the impact of disease and intervention in dementia. The subjective nature of quality of life provides …