RT Journal Article SR Electronic T1 Pharmacoeconomics: principles and relevance to the activities of drug and therapeutics committees JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 490 OP 492 DO 10.7861/clinmedicine.9-5-490 VO 9 IS 5 A1 Dyfrig Hughes A1 D John M Reynolds YR 2009 UL http://www.rcpjournals.org/content/9/5/490.abstract