1. Two decades of health services: Social survey trends in use and expenditure;Andersen,1976
2. Aging and politics;Binstock,2001
3. 2008 annual report of the Boards of Trustees of the Federal Hospital Insurance and Federal Supplementary Medical Insurance Trust Funds;Boards of Trustees,2008
4. 2009 annual report of the Boards of Trustees of the Federal Hospital Insurance and Federal Supplementary Medical Insurance Trust Funds;Boards of Trustees,2009
5. 2014 annual report of the Boards of Trustees of the Federal Hospital Insurance and Federal Supplementary Medical Insurance Trust Funds;Boards of Trustees,2014