Associate Professor of Biostatistics, Tehran University of Medical Sciences, Tehran, Iran

Honorary Professor (University of Auckland) and Independent Scholar

Senior Analyst, IHME Client Services, University of Washington

Professor at University of Connecticut

Professor of Statistics, Penn State University

Associate Professor, Fundação Getúlio Vargas

Capital University of Economics and Business (首都经济贸易大学)

Tufts University

University of Genoa