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S1
American College of Physicians Complete Home Medical Guide. Goldmann DR, editor. 1999. New York: DK Publishing, Inc. pp. 694-708, 1037.

S2
Harvard Medical School Family Health Guide. Komaroff I. 1999. New York: Simon & Schuster, pp. 810-825.

S3
Johns Hopkins Family Health Book. Klag MJ, editor. 1999. New York: HarperCollins Publishers, pp. 1069, 1078-1095.

S4
Kidney Failure: the Facts. Cameron S. 1998. New York: Oxford University Press, pp. 2-5, 8-10, 15-28.

S5
National Institute of Diabetes & Digestive & Kidney Diseases, National Institutes of Health web site. Available online: http://www.niddk.nih.govhealth/kidney/kidney.htm

S6
American Kidney Fund, Inc. web site. Available online: http://www.akfinc.org/KidneyFacts