AHFS drug information / American hospital formulary service drug information American Society of Health-System Pharmacists - Bethesda,Maryland : American Society of Health-System Pharmacists, 2006 - xvi, 3776 p.; 28 cm. ISBN: 1585281425 RM812.49 Subjects--Topical Terms: Formularies--United States--PeriodicalsFormularies, Hospital--United States--periodicalsPharmaceutical Preparations--United States--Periodicals