Professor of Medical Microbiology and Immunology at UC Davis, School of Medicine

Professor & Chief, Division of Infectious Diseases at University of North Carolina CH, School of Medicine

Professor of Genome Sciences, University of Washington in Seattle, WA

Professor at UC Davis, School of Medicine

Professor Emeritus, Medicine - Immunology & Rheumatology at Stanford University, School of Medicine

Research Associate, Health Care Coverage and Access & Tracking Health System Performance at The Commonwealth Fund

Chair of the Genetics Department at Yale University School of Medicine

Assistant Professor in the Division of Infectious Diseases at UC Davis, School of Medicine

Associate Professor of Clinical Medicine at UC Davis, School of Medicine

Visiting Instructor in Political Science at Wellesley College

Director of Immigration Law and Policy Research at Economic Policy Institute

Founding Director at U.S. Immigration Policy Center, UCSD

Senior Fellow at Migration Policy Institute

Ambassador at American Immigration Council

President at Federation for American Immigration Reform (FAIR)

Marketing Professor at Auburn University in Auburn, AL

Marketing Professor at the University of Georgia in Athens, GA

Marketing Professor at New York University at New York University

Professor of Marketing at USC Marshall School of Business

Professor of Marketing at Northwestern University

Associate Professor at Johns Hopkins University

Professor of Management and Marketing at Yale University in New Haven, CT

Professor at Eastern Illinois University in Charleston, IL