1. DeWalt DA, Revicki DA. Importance of patient-reported outcomes for quality improvement. Rockville: Agency for Healthcare Research and Quality; 2008. http://qualitymeasures.ahrq.gov/expert/expert-commentary.aspx?id=16466 . Accessed 26 Jan 2012.
2. Scottish Government. The healthcare quality strategy for NHS Scotland. Edinburgh: Scottish Government; 2010. http://www.scotland.gov.uk/Resource/Doc/311667/0098354.pdf . Accessed 26 Jan 2012.
3. Coyne KS, Tubaro A, Brubaker L, Bavendam T. Development and validation of patient-reported outcomes measures for overactive bladder: a review of concepts. Urology. 2006;68(2 Suppl.):9–16.
4. McKenna GS. Can learning disabilities explain low literacy performance? Gatineau: Human Resources and Social Development Canada; 2010.
5. National Literacy Trust. The Moser report. London: National Literacy Trust; 1999. http://www.literacytrust.org.uk/resources/practical_resources_info/1770_the_moser_report . Accessed 26 Jan 2012.