1. Prescription Drug Expenditures in 2000: The Upward Trend Continues [Internet];National Institute for Health Care Management, Research and Education Foundation,2001
2. Propelled by drug and hospital costs: health spending surged in 2000;Pear;New York Times,2002
3. Table 11—Prescription Drug Expenditures Aggregate and Per Capita Amounts, Percent Distribution and Average Annual Percent Change by Source of Funds: Selected Calendar Years 1980–2012 [Internet];Centers for Medicare and Medicaid Services,2003
4. Health spending growth up in 1999: faster growth expected in the future;Heffler;Health Aff (Millwood),2001
5. Prescription drug spending. the impact of age and chronic disease status;Mueller;Am J Public Health,1997