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Professor
Washington University School of Medicine
Disclosure(s): Pfizer Inc: Advisor/Consultant, Grant/Research Support
Margaret A. Olsen, PhD, MPH is a Professor of Medicine and Surgery at Washington University School of Medicine in St. Louis, MO. Her expertise is in epidemiology of healthcare-associated infections, particularly surgical site and Clostridioides difficile infection, and in use of administrative billing and claims data for clinical and outcomes research. She has used a variety of administrative data for research on healthcare-associated infections, including Heathcare Cost and Utilization Project, Healthcore, IBM MarketScan, and CMS Medicare data.