RT Journal Article SR Electronic T1 Acupuncture may be considered to be an effective tool for patients with frequent episodic or chronic tension-type headache JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 183 OP 183 DO 10.1136/ebmed-2016-110487 VO 21 IS 5 A1 Liu, Yinglu A1 Yu, Shengyuan YR 2016 UL http://ebm.bmj.com/content/21/5/183.abstract AB