Leiya Han is an Associate Science Director in Biostatistics and Health Economics and Outcomes Research (HEOR) at PPD, where they have worked since 2002. Previously, Leiya held various positions, including Principal Scientist and Senior Pharmacoeconomist, contributing significantly to health technology assessments, study protocols, and budget impact modeling. Before joining PPD, Leiya worked as a Statistical Programmer Analyst at PRA International and served as an Associate Professor at the Dept. of Health Economics, Tongji Medical University in China from 1985 to 1999. Leiya holds an M.D. in Preventive Medicine and an MPH in Biostatistics from Tongji Medical University, as well as an MS in Health Policy and Management from Harvard School of Public Health.
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