1. Incontinence: 1st international consultation on incontinence,1999
2. Clinical guidelines for the management of incontinence;Thüroff,1999
3. EAU guidelines on incontinence;Hampel,2001
4. Oxford Centre for Evidence-based Medicine levels of evidence (March 2009);Phillips,2009
5. Evidence-based medicine overview of the main steps for developing and grading guideline recommendations;Abrams,2005