University of California, USA

Temple University, Fox Business School, USA

Worcester Polytechnic Institute, USA

University of Missouri, USA

Chinese Academy of Sciences, China

University of Louisville, USA

Yale University, USA

Human Genetics Center, University of Texas School of Public Health, USA

University of California, Berkeley, USA

University of Pittsburgh, USA

University of Wisconsin, Madison, USA

University of Alabama, USA

University of Guelph, Ontario, USA

Creighton University School of Medicine, USA

Boston University Medical Campus, USA

Center for Statistical Sciences, Brown University, USA

University of Nebraska – Lincoln, USA

College of Public Health, University of Nebraska Medical Center, USA

Kennesaw State University, USA

Johns Hopkins University School of Medicine, USA

Iowa State University, USA

University of Ilorin, Africa