The physician's dilemma: when to let go.
D000368:Aged; D001293:Attitude to Death; D005065:Euthanasia; D005066:Euthanasia, Passive; D006801:Humans; D008020:Life Support Care; D013677:Medical Laboratory Science; D010819:Physician's Role; D011788:Quality of Life; D012380:Role; D013315:Stress, Psychological