However, it is not yet clear whether such measures are useful in a pragmatic sense to the clinician. The data are simply not in available, although quality of life measures seem most promising and are receiving attention in the literature. One excellent example is the Short Form-36 Survey (SF-36), which is a well-established measure (abbreviated versions of the same measure, SF-20and SF-12, are also available)with excellent psychometric properties that includes pain as an aspect of quality of life that is measured.