UnitedHealth Group ("we," "our," or "the Company") is a diversified health and well-being company, serving approximately 70 million Americans. We are focused on improving the American health care system and how it works for multiple, distinct constituencies. We provide individuals with access to quality, cost-effective health care services and resources through more than 520,000 physicians and other care providers and 4,700 hospitals across the United States.

During 2006, we managed approximately $92 billion in aggregate health care spending on behalf of the constituents and consumers we served. Our primary focus is on improving health care systems by...