RT Journal Article SR Electronic T1 Is preventive suicide a rational response to a presymptomatic diagnosis of dementia? JF Journal of Medical Ethics JO J Med Ethics FD BMJ Publishing Group Ltd and Institute of Medical Ethics SP 511 OP 512 DO 10.1136/medethics-2014-102334 VO 40 IS 8 A1 Russell Powell YR 2014 UL http://jme.bmj.com/content/40/8/511.abstract AB