Hospice: a historical perspective.
D000368:Aged; D002910:Chronology as Topic; D006291:Health Policy / Q000266:history; D049673:History, 20th Century; D049674:History, 21st Century; D006738:Hospices / Q000191:economics / Q000266:history*; D006801:Humans; D006278:Medicare / Q000266:history; D014481:United States