1. The Cochrane Collaboration. A brief introduction. Available at: http://www.cochrane.org/resources/leaflet.pdf.
2. What is evidence-based medicine?;Zou;Acad Radiol,2004
3. Evidence-based radiology;Radiology,2001
4. Agency for Healthcare Research and Quality. Evidence-based practice centers: synthesizing scientific evidence to improve quality and effectiveness in health care. Available at: http://www.ahrq.gov/clinic/epc/.
5. Single-therapy androgen suppression in men with advanced prostate cancer;Seidenfeld;Ann Intern Med,2000