AU - Katzung B FAU - Katzung, Bertram G. AU - Katzung B FAU - Katzung, Bertram G. TI - Introduction: The Nature of Drugs & Drug Development & Regulation PT - BOOK SECTION DP - 2017 BTI - Basic & Clinical Pharmacology, 14e DA - 2017 Y2 - 2024/03/28 UR - accessmedicine.mhmedical.com/content.aspx?aid=1150216534