RT Journal Article SR Electronic T1 ‘Existential suffering’ and voluntary medically assisted dying JF Journal of Medical Ethics JO J Med Ethics FD BMJ Publishing Group Ltd and Institute of Medical Ethics SP 108 OP 109 DO 10.1136/medethics-2012-101101 VO 40 IS 2 A1 Robert Young YR 2014 UL http://jme.bmj.com/content/40/2/108.abstract AB