1. Management of overactive bladder;Ouslander;N Engl J Med,2004
2. The effects of antimuscarinic treatments in overactive bladder;Chapple;A systematic review and meta-analysis,2005
3. http://www.pharma.us.novartis.com/product/pi/pdf/enablex.pdf
4. Napier C Gupta P. 3 http://www.continet.org/publications/2002/pdf/445.pdf