Charter Members

• Aetna Inc

• AstraZeneca Pharmaceuticals, Inc.

• Emblem Health

• Johnson & Johnson

• Kaiser Permanente

• Merck & Company, Inc.

• Pfizer, Inc.

Members

• Blue Cross & Blue Shield of Massachusetts

• BlueCross BlueShield Association

• Blue Cross Blue Shield of Florida

• Blue Cross Blue Shield of Louisiana

• Boston Scientific

• GlaxoSmithKline

• Horizon Blue Cross Blue Shield of New Jersey

• Medtronic

• Novartis Pharmaceuticals Corporation

• Partners Healthcare

• Sanofi-Aventis

• Wyeth Pharmaceuticals