RT Journal Article SR Electronic T1 Chapter 5: The tools of evidence-based medicine JF European Journal of Hospital Pharmacy JO Eur J Hosp Pharm FD British Medical Journal Publishing Group SP 74 OP 78 DO 10.1136/ejhpharm-2014-000442 VO 21 IS 2 A1 Phil Wiffen A1 Tommy Eriksson A1 Hao Lu YR 2014 UL http://ejhp.bmj.com/content/21/2/74.abstract AB