Wade DT, Langton Hewer R. Functional abilities after stroke: measurement, natural history and prognosis. J Neurol Neurosurg Psychiatry1987; 50: 177–182.
2.
Turner-Stokes L, Nyein K, Halliwell D. The Northwick Park Care Needs Assessment (NPCNA): a directly costable outcome measure in rehabilitation. Clin Rehabil1999; 13: 253–265.
3.
Turner-Stokes L, Tonge P, Nyein K, Hunter M, Nielson S, Robinson I. The Northwick Park Dependency Score (NPDS): a measure of nursing dependency in rehabilitation. Clin Rehabil1998; 12: 304–318.
4.
Al-Khawaja I, Wade DT, Turner F. The Barthel Index and its relationship to nursing dependency in rehabilitation. Clin Rehabil1997; 11: 335–337.
5.
Mant J, Hicks N. Detecting differences in quality of care: the sensitivity of measures of process and outcome in treating myocardial infarction. BMJ1995; 311: 793–796.