Pfizer Inc is dedicated to better health and greater access to health care for people and their valued animals. The Public Health and Government Group creates and manages public-private partnership programs and advances public health research in order to establish Pfizer as a global leader in public health innovation. www.pfizerpublichealth.com

MedImmune strives to provide better medicines to patients, new medical options for physicians, rewarding careers to employees, and increased value to shareholders. Dedicated to advancing science and medicine to help people live better lives, the company is focused on the areas of infectious disease, cancer and inflammatory disease. The company's marketed products include Synagis(r) (palivizumab), Ethyol(r) (amifostine), and FluMist(r) (Influenza Virus Vaccine Live, Intranasal), with additional products in clinical testing. With more than 2,500 employees worldwide, MedImmune is headquartered in Maryland. For more information, visit the company's website at www.medimmune.com.

The MITRE Corporation is a private, independent not-for-profit organization chartered to work solely in the public interest. MITRE manages three Federally Funded Research and Development Centers sponsored by the Department of Defense, the Federal Aviation Administration, and the Internal Revenue Service. As a national resource, we apply our expertise in systems engineering, information technology, operational concepts, and enterprise modernization and are dedicated to improving the quality of our nation's healthcare through the transformation of healthcare enterprises. www.mitre.org