1. 1997. Urodynamics. 2nd edition. London: Springer. pp 17–117.
2. . 2000. Urodynamics made easy. 2nd edition. London: Churchill Livingstone. pp 1–4.
3. Department of Health. 1998. A first class service: Quality in the new NHS. Great Britain: DoH.
4. , . 2002. Learning, practice and assessment: Signposting the portfolio. London: Kingsley.
5. European Commission. 1999. ‘Best Practice’: State of the art and perspectives in the EU for improving the effectiveness and efficiency of European health systems. Luxembourg: Office for Official Publications of the EU.