Katherine Sherif, MD is Professor and Vice Chair, Clinical Affairs, Department of Medicine at Thomas Jefferson University in Philadelphia. She is also Director of Jefferson Women’s Primary Care. Dr. Sherif, an internist, became interested in Polycystic Ovary Syndrome in the 1990’s when she was studying insulin resistance. In 2000, she established the country’s first academic program for Polycystic Ovary Syndrome. Dr. Sherif's other interests include menopause and hormone therapy, omega-3 fatty acids and heart disease in women. She published a textbook on women’s health in 2008, and a medical handbook on hormone replacement therapy in 2013. She co-authored the AHA 2011 Guidelines on Cardiovascular Disease and Prevention in Women.