@inbook{1148432564, author={Bertram G. Katzung}, editor={Katzung, Bertram G.}, title={Introduction: The Nature of Drugs & Drug Development & Regulation}, booktitle={Basic & Clinical Pharmacology, 14e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2017}, url={fadavisat.mhmedical.com/content.aspx?aid=1148432564} }