Dr. Margaret Mayer, MPH, PhD, is a Program Director in the Tobacco Control Research Branch (TCRB) of the Behavioral Research Program (BRP). Dr. Mayer supports the Tobacco Use Supplement to the Current Population Survey (TUS-CPS). Her program of research uses TUS-CPS, TUS-linked mortality data, and other data sources to characterize, study transitions between, and identify the health effects associated with different patterns of tobacco use. Patterns of particular interest include e-cigarette use, dual- and poly-product use, and menthol product use. Dr. Mayer holds a PhD in Public Health from Yale University, an MPH in Chronic Disease Epidemiology from the Yale School of Public Health, and a B.S. in Molecular and Cell Biology from the University of Connecticut. During her graduate training, she worked with the Yale Tobacco Center of Regulatory Science, where she focused on the initiation of and transitions between different types of tobacco products among youth. She completed her postdoctoral training with TCRB as a Cancer Research Training Award Fellow.