1. UpToDate, Wellesley, MA: 2007.
2. The pharmacological role of the kidney;Brater;Drugs,1980
3. Clinical Drug Use. Available at: www.clinicaldruguse.com. Accessed May 6, 2008.
4. Drug dosing guidelines in patients with renal failure;Swan;West J Med,1992
5. Pharmacologically active drug metabolites: Therapeutic and toxic activities, plasma and urine data in man, accumulation in renal failure;Drayer;Clin Pharmacokinet,1976