PhelpsC E. The methodologic foundations of studies of the appropriateness of medical care. New England Journal of Medicine1993; 329: 1241–1245.
2.
HicksN R. Some observations on attempts to measure appropriateness of care. British Medical Journal1994; 309: 730–733.
3.
NaeseR FKneelandTO'ConnorG T. Variations in patients utilities for outcomes of the management of chronic stable angina: Implications for practice guidelines. Journal of the American Medical Association1995; 273: 1185–1190.