When you withhold life-prolonging treatment.
D001290:Attitude; D005065:Euthanasia; D028601:Euthanasia, Active; D005066:Euthanasia, Passive; D006801:Humans; D007878:Legislation as Topic; D016365:Liability, Legal; D010820:Physicians; D013219:State Government; D019452:Terminally Ill