[1] Beers M and Berkow R.  Urinary Tract Infections, Chapter 227. The Merck Manual, 17th Ed.; 1999. 
 

[2] Beers M and Berkow R.  Urinary Tract Infections, Chapter 227. The Merck Manual, 17th Ed.; 1999. 
 

[3] Beers M and Berkow R.  Urinary Tract Infections, Chapter 227. The Merck Manual, 17th Ed.; 1999. 
 

[4] http://kidney.niddk.nih.gov National Kidney and Urologic Disease Information Clearinghouse.  November 2004.
 

[5] Beers M and Berkow R.  Urinary Tract Infections, Chapter 227. The Merck Manual, 17th Ed.; 1999. 
 

[6] Stothers L.  A randomized trial to evaluate effectiveness and cost effectiveness of naturopathic cranberry products as prophylaxis against urinary tract infections in women.  Can J Urol.  2002 Jun; 9(3): 1558-1562.
 

[7] Foxman B, Chi JW.  Health behavior and urinary tract infections in college aged women.  J Clin Epidemiol.  1990; 43(4): 329-337.
 

[8] Yarnell E.  Botanical medicines for the urinary tract.  World J Urol.  2002 Nov; 20(5): 285-293.