RT Journal Article SR Electronic T1 Placebo acupuncture improved symptoms and quality of life in irritable bowel syndrome JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 180 OP 180 DO 10.1136/ebm.13.6.180 VO 13 IS 6 YR 2008 UL http://ebm.bmj.com/content/13/6/180.abstract AB