Mats J. Stensrud, MD Dr philos, is a tenure-track assistant professor of biostatistics in the Department of Mathematics at EPFL in Switzerland. His research focuses on methods for causal inference in medicine and epidemiology, usually in settings with exposures and outcomes that depend on time. Before coming to EPFL, Dr Stensrud was a Kolokotrones research fellow and Fulbright Research Scholar at Harvard School of Public Health.