Charter Members

• Aetna Inc

• Ascension Health

• AstraZeneca US

• EmblemHealth, Inc.

• Johnson & Johnson

• Kaiser Permanente

• Pfizer, Inc.

Members

• Blue Cross and Blue Shield Association

• Blue Cross Blue Shield of Massachusetts

• BlueCross BlueShield of Tennessee, Inc.

• Boston Scientific

• Eli Lilly and Co.

• Geisinger Health System

• Genentech

• GlaxoSmithKline

• Highmark Blue Cross Blue Shield

• Medtronic Inc.

• Novartis Pharmaceuticals Corporation

• Partners Healthcare

• Premier, Inc. http://www.premierinc.com/