title: Is anyone in there?
authors: N
authors: N
authors: Boyce
mesh_terms: D000328:Adult; D003128:Coma; D005066:Euthanasia, Passive; D005260:Female; D006801:Humans; D008020:Life Support Care; D008297:Male; D018458:Persistent Vegetative State / Q000175:diagnosis*; D011379:Prognosis; D011788:Quality of Life; D013997:Time Factors; D028761:Withholding Treatment