RT Journal Article SR Electronic T1 Are preventive drugs preventive enough JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 84 OP 84 DO 10.7861/clinmedicine.3-1-84 VO 3 IS 1 A1 Sarah Mackie YR 2003 UL http://www.rcpjournals.org/content/3/1/84.1.abstract AB