Assistant Professor of Internal Medicine, Division of Infectious Diseases at University of Michigan, School of Medicine

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

President and CEO at U.S. Chamber of Commerce in Washington, DC

Professor of Infectious Diseases at University of Michigan, School of Medicine

Director, Global Health Policy & Politics Initiative, Professor of Law & Assistant Professor of Global Health at Georgetown University, School of Medicine

Adjunct Professor, Department of Microbiology & Immunology at Georgetown University, School of Medicine

Board Member at Doctors Without Borders

Director - Georgetown COMPASS, Tenure Line - Professor (Infectious Diseases) at Georgetown University, School of Medicine

Associate Professor of Molecular Biology & Microbiology at Tufts University, School of Medicine

Astronomer, Research Associate at McDonald Observatory, University of Texas at Austin

Astronomer at McDonald Observatory, University of Texas at Austin

Astronomer at McDonald Observatory, University of Texas at Austin

Astronomy at McDonald Observatory, University of Texas at Austin

Member of the Board at Harvard Belfer Center for Science and International Affairs

Professor, Arizona State University, School of Earth and Space Exploration in Phoenix, AZ

Astronomer at McDonald Observatory, University of Texas at Austin

Astronomy at McDonald Observatory, University of Texas at Austin

California Director at Americans for Safe Access

Founder & Former Executive Director at Americans for Safe Access

Expert at Cannabis Expertise

Executive Director at Americans for Safe Access

Co-Founder and Chief Executive Officer at National Cannabis Industry Association