RT Journal Article SR Electronic T1 Dextromethorphan and quinidine are suitable for off-label short-term treatment of agitation in people with Alzheimer's disease following first-line non-drug approaches JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 25 OP 25 DO 10.1136/ebmed-2015-110324 VO 21 IS 1 A1 Anne Corbett A1 Clive Ballard YR 2016 UL http://ebm.bmj.com/content/21/1/25.abstract AB