Merck & Co. Inc.

Mr. Carlos E. Represas has been Chairman of Nestle Group Mexico since 1983. He is a member of the Board of Directors of Merck & Co., Inc. since February 2009. He is a member of the Latin American Business Council (CEAL). He is Chairman of the Board of Trustees of the National Institute of Genomic Medicine of Mexico and President of the Mexico Chapter of the Latinamerican Chamber of Commerce in Zurich, Switzerland. From 1994 to 2004, he was Executive Vice President and also President of the Americas of Nestle, S.A. In July 2004, he retired from his executive responsibilities at Nestle where he worked during 36 years (1968-2004) in seven different countries.

Steven F. Goldstone has served on our Board of Directors since July of 2004. He currently manages Silver Spring Group, a private investment firm. From 1995 until his retirement in 2000, Mr. Goldstone was chairman and chief executive officer of RJR Nabisco, Inc. (which was subsequently named Nabisco Group Holdings following the reorganization of RJR Nabisco, Inc.). Prior to joining RJR Nabisco, Inc., Mr. Goldstone was a partner at Davis Polk & Wardwell, a law firm in New York City. He is also a director of American Standards Companies, ConAgra Foods, Inc., Retail DNA, Inc. and New Castle Hotels, chairman of Ridgefield Senior Center Foundation, chairman of the Roundabout Theatre Company (New York City) and a member of the College Board of Overseers at the University of Pennsylvania.

J. Chris Scalet Executive Vice President, Global Services, and Chief Information Officer Professional Experience Merck & Co., Inc. * Executive Vice President, Global Services, and Chief Information Officer, 2008 * Senior Vice President, Global Services, and Chief Information Officer, 2006-2007 * Senior Vice President, Information Services, and Chief Information Officer, 2003-2005 Other Professional Experience * International Paper; Senior Vice President, Information Technology and CIO, 1998-2003 * MAPCO Inc.; Vice President, Information Technology and CIO, 1993-1997 Education * B.S., Management Science and Computer Systems, Oklahoma State University * Executive Development Program, Kellogg School of Management, Northwestern University Affiliations Board Memberships * Past Honorary Conference Chair BDPA (Black Data Processing Associates) * Research Board, 2003 to present

Merck & Co., Inc. * Chairman, President and Chief Executive Officer, Merck & Co., Inc., 2007 * CEO and President, Merck & Co., Inc., 2005-2007 * President, Merck Manufacturing Division, 2003-2005 * Chairman and CEO, Medco Health Solutions, Inc., 2002-2003 * President, Medco Health Solutions, Inc. (Merck-Medco Managed Care), 2000-2002 * Executive Vice President/Chief Operating Officer, Merck-Medco Managed Care, L.L.C., 1997-2000 * Senior Vice President, Quality Commercial Affairs, MMD, 4/1997-5/1997 * Senior Vice President, North American Operations, MMD, 5/1996-3/1997 * Vice President, North American Operations, MMD, 10/1994-5/1996 * Vice President, Procurement & Materials Management, MMD, 1993-1994 * Vice President, Materials Management & Management Engineering, MMD, 1991-1993 * Executive Director, Management Engineering, Merck Pharmaceutical Manufacturing Division, 1989-1991 * Senior Director, Management Engineering, Merck Sharp & Dohme/MPMD, 1986-1989 * Director, Operations Improvement, MPMD, 1985-1986 * Senior Manager, Industrial Engineering, MPMD, 1984-1985 * Manager, Industrial Engineering, MSD, West Point, 1983-1984 * Production Manager, MSD, Elkton Pharmaceutical Laboratories, 1981-1983 * Senior New Products Planner, 1978-1981 * Quality Control Inspector, Industrial Engineer, Quality Control Analyst, Lead Supervisor-Pharmaceutical Production, MSD, 1972-1978 Education * M.B.A., American University, 1970 * B.A., Liberal Arts, Washington & Jefferson College, 1968 Affiliations * Past Chairman of Pharmaceutical Research and Manufacturers of America (PhRMA), 2008 Military * Lieutenant, U. S. Army, 1970-1972

Peter S. Kim Executive Vice President and President, Merck Research Laboratories Professional Experience Merck & Co., Inc. * Executive Vice President and President, Merck Research Laboratories, 2008 to present * President, Merck Research Laboratories, 2003-2008 * Executive Vice President, Research and Development, MRL, 2001 - 2002 Other Professional Experience * Associate Head, Department of Biology, M.I.T., 1999 - 2001 * Investigator, Howard Hughes Medical Institute, 1997 - 2001 * Professor of Biology, M.I.T., 1995 - 2001 * Member, Whitehead Institute for Biomedical Research, 1992 - 2001 * Associate Professor of Biology, M.I.T., 1992 - 1995 * Assistant Investigator, Howard Hughes Medical Institute, 1990 - 1993 * Assistant Professor of Biology, M.I.T., 1988 - 1992 * Whitehead Fellow, Whitehead Institute for Biomedical Research, 1985 - 1988 Education * Ph.D., Biochemistry, Stanford University, 1985 * A.B., Chemistry, Cornell University, 1979 Board Memberships and Other Affiliations * Member, Board of Trustees, Alfred P. Sloan Foundation, 2009 to present * Member, Council, Institute of Medicine, National Academy of Sciences, 2006 to present * Member, Board of Directors, Whitehead Institute for Biomedical Research, 2005 to present Elected Memberships * Fellow, American Academy of Arts & Sciences, 2008 * Member, Institute of Medicine, National Academy of Sciences, 2000 * Fellow, American Association for the Advancement of Science, 1999 * Fellow, Biophysical Society, 1999 * Member, Korean Academy of Science and Technology, 1999 * Fellow, American Academy of Microbiology, 1997 * Member, National Academy of Sciences, 1997 Selected Awards * Harvey Lecture, The Harvey Society, 2002 * Hans Neurath Award, Protein Society, 1999 * Ho-Am Prize for Basic Science, Samsung Foundation, 1998 * Pfizer Animal Health Award, 1995 * Dupont Merck Young Investigator Award, 1994 * Eli Lilly Award in Biological Chemistry, 1994 * National Academy of Sciences Award in Molecular Biology, 1993

Professional Experience Merck & Co., Inc. * Executive Vice President and President, Merck Manufacturing Division, 2008 * President, Merck Manufacturing Division, 2005-2007 * Senior Vice President, Global Procurement, 2004-2005 Other Professional Experience GlaxoSmithKline * Senior Vice President, Global Procurement and Logistics, GlaxoSmithKline, 2001-2004 * Senior Vice President and Director, Purchasing, Worldwide Supply Operations, SmithKline Beecham Pharmaceuticals, 1997-2000 * Vice President and Director, Purchasing, SmithKline Beecham Pharmaceuticals, 1995-1996 * Director, Purchasing, SmithKline Beecham Clinical Laboratory Sector, 1992-1995 Kaiser Permanente * Vice President, Purchasing, Kaiser Permanente, 1996-1997 Digital Equipment Corporation * Site Manager, Digital Equipment Corporation, 1991-1992 * Disk Operations Manager, Digital Equipment Corporation, 1989-1990 * Site Materials Manager, Digital Equipment Corporation, 1987-1989 * Site Purchasing Manager, Digital Equipment Corporation, 1985-1987 * Business Materials Manager, Digital Equipment Corporation, 1983-1985 * Purchasing Manager, Digital Equipment Corporation, 1981-1983 * Senior Buyer, Digital Equipment Corporation, 1980-1981 * Buyer, Digital Equipment Corporation, 1977-1979 Education * M.B.A., Western New England College, 1983 * B.A., Business Administration, North Carolina A&T State University, 1977

Bruce N. Kuhlik Executive Vice President and General Counsel Professional Experience Merck & Co., Inc. * Executive Vice President and General Counsel, 2008 * Senior Vice President and General Counsel, 2007 * Vice President and Associate General Counsel, 2005-2007 Other Professional Experience Pharmaceutical Research and Manufacturers of America * Senior Vice President and General Counsel, 2002-2005 Covington & Burling * Partner, 1990-2002 * Associate, 1982-1984, 1986-1990 U.S. Department of Justice * Assistant to the Solicitor General, 1984-1986 Honorable Levin H. Campbell, U.S. Court of Appeals for the First Circuit * Law Clerk, 1981-1982 Education * J.D., Harvard Law School, 1981 * A.B., Economics, Harvard College, 1978 Bar Admissions * Pennsylvania (Limited In-House Counsel License), 2005 * Supreme Court of the United States, 1985 * District of Columbia, 1982

Mirian Graddick-Weir, Ph.D. Executive Vice President, Human Resources PROFESSIONAL EXPERIENCE Merck & Co., Inc. * Executive Vice President, Human Resources, 2008 * Senior Vice President, Human Resources, 2006-2007 OTHER PROFESSIONAL EXPERIENCE AT&T * Executive Vice President, Human Resources and Employee Communications, 2004-2006 * Executive Vice President, Human Resources, 1999-2004 * Chief Human Resources Officer, Consumer Services Company, 1998-1999 * Vice President, Human Resources, Business Effectiveness, 1996-1998 * Vice President, Human Resources, 1995-1996 * Vice President, Multimedia Products and Executive HR, 1994-1995 * Director, Customer Service, Consumer Communications Services, 1991-1993 * Director, Human Resources, International Communications Services, 1989-1991 * Special Assistant to the Vice Chairman, 1988-1989 * Corporate Human Resources, 1981-1988 EDUCATION * Ph.D., Industrial/Organizational Psychology, Penn State, 1981 * M.S., Industrial/Organizational Psychology, Penn State, 1978 * B.A., Psychology, Hampton University, 1976 AFFILIATIONS Board Memberships: * Cornell Center for Advanced Human Resource Studies * The Harleysville Group Insurance Company * Jersey Battered Women's Services, Inc. * National Academy of Human Resources * Human Resources Policy Association * National Medical Fellowships * Personnel Roundtable * Kent Place School AWARDS * Distinguished Psychologist in Management, 2003 * HR Executive of the Year, 2001 * AT&T Catherine B. Cleary – Woman of the Year, 1990

Tom Glocer is Chief Executive Officer of Thomson Reuters, the world's leading source of intelligent information for businesses and professionals. It combines unmatched industry expertise with innovative technology to deliver critical information to leading decision makers in the financial, legal, tax and accounting, scientific, healthcare and media markets, powered by the world's most trusted news organization. Mr. Glocer joined Reuters Group in 1993 as Vice President and Deputy Counsel, Reuters America. He held a number of senior leadership positions at Reuters, including President of Reuters LatAm and Reuters America, before being named CEO of Reuters Group PLC in July 2001. He is a director of Merck & Co., Inc., the Columbia College Board of Visitors, the President's Council on International Activities at Yale University, the Advisory Board of the Judge Institute of Management at Cambridge University, the International Business Council of the World Economic Forum, the European Business Leaders Council, the Board of Directors of the Partnership for New York City, the International Advisory Board of British American Business Inc., the International Business Advisory Council London, the Corporate Advisory Board of Tate Britain and the Madison Council of the Library of Congress. Mr. Glocer holds a bachelor's degree in political philosophy from Columbia University and a J.D. from Yale Law School.