References

• 1999METHODS FOR ANALYZING HEALTH CARE UTILIZATION AND COSTS663 cited
• 2002Employer Drug Benefit Plans and Spending on Prescription Drugs228 cited
• 1990The Effect of Drug Co-Payments on Utilization and Cost of Pharmaceuticals in a Health Maintenance Organization188 cited
• 2001Effect of a Three-Tier Prescription Copay on Pharmaceutical and Other Medical Utilization161 cited
• 1985The differential impact of copayment on drug use in a Medicaid population.112 cited
• 1984The Effect of a Medicaid Drug Copayment Program on the Utilization and Cost of Prescription Services112 cited
• 1997The impact of increasing patient prescription drug cost sharing on therapeutic classes of drugs received and on the health status of elderly HMO members.99 cited
• 2002Job-Based Health Benefits In 2002: Some Important Trends86 cited
• 2003Effect of Tiered Prescription Copayments on the Use of Preferred Brand Medications85 cited
• 1999The effect of a copay increase on pharmaceutical utilization, expenditures, and treatment continuation.68 cited

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