INDEPENDENT Age: 82 Director Since: 1993 Committees: Compensation Committee and Science and Technology Committee Dr. Polan served as an Adjunct Professor in the Department of Obstetrics and Gynecology at Columbia University School of Medicine from 2007 to 2014. She rejoined the Department of Obstetrics and Gynecology at Yale University School of Medicine as a Professor of Clinical Obstetrics, Gynecology and Reproductive Sciences in 2015. Dr. Polan previously served as a Professor and Chair Emerita of the Department of Gynecology and Obstetrics at Stanford University School of Medicine from 1990 to 2005, and before that served on the faculty at Yale University. Dr. Polan received a B.A. degree from Connecticut College, a Ph.D. in Molecular Biophysics and Biochemistry and an M.D. from Yale University School of Medicine and her M.P.H. from the University of California, Berkeley. Dr. Polan remained at Yale New Haven Hospital for her residency in Obstetrics and Gynecology, followed by a Reproductive Endocrine Fellowship. Dr. Polan also serves as a director at the following private companies: NX Prenatal Inc., Or-Genix Therapeutics, Inc., Residents Diagnostics, Inc., MiraDx, Inc. and FABBiopharma, Inc. Dr. Polan is a prominent medical clinician, researcher and academician. She has extensive experience in the area of women s health, which is an important area for us. As a medical doctor and practicing gynecologist, Dr. Polan brings an important practicing physician perspective in evaluating and overseeing the Company s performance and strategic direction. She also has extensive governance experience through her service on the boards of directors of other companies. Other Current Public Company Directorships: None Prior Public Company Directorships Within the Past 5 Years: ChemBio Diagnostics until 2021