Equation	Variables	Sources
Cockcroft-Gault	Age, weight, sex, serum creatinine	Nephron Information Center Web site:http://www.nephron.com/cgi-bin/CGSI.cgi
Modification of Diet in Renal Disease	Age, sex, race, serum urea nitrogen, serum albumin, serum creatinine	National Kidney Disease Education Program Web site:http://www.nkdep.nih.gov/professionals/gfr_calculators/index.htm
		Nephron Information Center Web site:http://www.nephron.com/cgi-bin/MDRDSI.cgi