Dr. Lee's work focuses on developing quality metrics for use in pediatrics, evaluating the impact of payment policies on health outcomes, preventing healthcare-associated infections, and conducting near real-time surveillance to monitor the safety of medical product use. She served as the Principal Investigator (PI) on the CDC-funded Vaccine Safety Datalink project, Associate Director of the FDA-funded Mini-Sentinel Project, and PI of an AHRQ-funded grant to develop a national surveillance definition for pediatric ventilator-associated events and to identify potential intervention bundles to improve quality of care. She is currently the PI of an AHRQ-funded grant to evaluate the health and economic impact of the CMS Hospital-Acquired Conditions and Value-Based Purchasing policies, which is called the Preventing Avoidable Infectious Complications by Adjusting Payment (PAICAP) study (www.paicap.org). Dr. Lee previously served as a member on the Institute of Medicine Committee (IOM) to Review Priorities in the National Vaccine Plan, the IOM Committee on the Ethical and Scientific Issues in Studying the Safety of Approved Drugs, AHRQ's Healthcare Safety and Quality Improvement Research Study Section and a Board Member for the Society for Healthcare Epidemiology of America (SHEA), Pediatric Infectious Diseases Society (PIDS), and the National Academy of Medicine Board on Population Health and Public Practice. She currently serves as a voting member of the CDC's Advisory Committee on Immunization Practices.