Treatment at the end of life.
D000368:Aged; D000369:Aged, 80 and over; D001601:Bereavement; D017028:Caregivers / Q000523:psychology* / Q000639:trends; D019317:Evidence-Based Medicine / Q000639:trends*; D006801:Humans; D011788:Quality of Life; D012944:Social Support; D013727:Terminal Care / Q000458:organization & administration / Q000523:psychology* / Q000639:trends