RT Journal Article SR Electronic T1 Putting evidence into context: some advice for guideline writers JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 130 OP 132 DO 10.1136/ebm.12.5.130-a VO 12 IS 5 A1 Jonathan Dartnell A1 Mary Hemming A1 Joe Collier A1 Guenter Ollenschlaeger YR 2007 UL http://ebm.bmj.com/content/12/5/130.2.abstract AB