American Association of Kidney Patients
http://www.aakp.org/
National Kidney Foundation
http://www.kidney.org/
DaVita
http://www.davita.com/
Dialysis Clinic, Inc.
http://www.dciinc.org/
Kidney School
http://kidneyschool.org/resources/
Renal Support Network
http://www.rsnhope.org/
United States Renal Data System
https://www.usrds.org/
American Diabetes Association
http://www.diabetes.org/
Polycystic Kidney Disease Foundation
http://www.pkdcure.org/
Quest Diagnostics
http://www.questdiagnostics.com
Potassium Information
http://www.kidney.org/atoz/content/potassium.cfm