Henry joined Charles River in 2010 as a Scientific Advisor within Navigator Services. He has extensive drug discovery and development experience with more than 30 years in the pharmaceutical industry. Prior to joining Charles River, Holzgrefe held senior positions at Bristol-Myers Squibb and Hoffmann-La Roche (Basel, CH). He is the author of more than 75 scientific abstracts and peer-reviewed publications focused on cardiovascular safety assessment of small molecules and biologics. Holzgrefe is a member of the Society of Toxicology, the Safety Pharmacology Society and the American Heart Association. He has a Bachelor of Arts degree from the University of Virginia, Charlottesville, Va.