1. Department of Health (UK), ed. Guidance on the Routine Collection of Patient-Reported Outcome Measures (PROMs). London, UK: The Stationery Office, 2009.
2. U.S. Department of Health and Human Services, Food and Drug Administration, ed. Guidance for Industry. Patient-Reported Outcome Measures: Use in Medical Product Development to Support Labeling Claims. Rockville, MD: FDA, 2009.
3. National Institute for Health and care Excellence. Guide to the methods of technology appraisal 2013. Available from: http://www.nice.org.uk/article/pmg9/resources/non-guidance-guide-to-the-methods-of-technology-appraisal-2013-pdf. [Accessed September 23, 2014].
4. Patient-reported outcome measures and performance measurement;Fitzpatrick,2009
5. International Classification of Functioning,2001