1.  American Podiatric Medical Association - http://www.apma.org

2.  American College of Foot and Ankle Surgeons - http://www.acfas.org

3.  American Board of Foot and Ankle Surgery- http://www.abfas.org

4.  National Library of Medicine - http://www.nlm.nih.gov/

5.  RxList medication information - http://www.rxlist.com