RT Journal Article SR Electronic T1 Of studies, syntheses, synopses, summaries, and systems: the ā€œ5Sā€ evolution of information services for evidence-based healthcare decisions JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 162 OP 164 DO 10.1136/ebm.11.6.162-a VO 11 IS 6 A1 R Brian Haynes YR 2006 UL http://ebm.bmj.com/content/11/6/162.2.abstract AB