Brunton L, Chabner B, Knollman B. Goodman & Gilman's The Pharmacological Basis of Therapeutics. 12th ed. McGraw-Hill, 2011.
Burtis CA, Bruns DE, eds. Tietz Textbook of Clinical Chemistry and Molecular Diagnostics, 7th ed. Philadelphia: WB Saunders, 2015.
Kaplan LA, Pesce A. Clinical Chemistry: Theory, Analysis, Correlation. 5th ed. New York: Mosby, 2010.
Perrine D. The Chemistry of Mind-Altering Drugs: History, Pharmacology, and Cultural Context. American Chemical Society Publication, 1996.
Quest Diagnostics, Study Report on Urine Testing for Prescription Drugs. January 2011.
Reisfield et al., Clin Chem, 2009: 55 1765-1768.
