Professor, Arizona State University

Professor emeritus of Anatomy, Department of Oral Biology, University of Oslo

Associate Professor, Department of Odontology, University of Copenhagen

Clinical Professor, University of Wisconsin-Madison School of Veterinary Medicine

University of Arkansas

University of Petra

Professor, Department of Biological Sciences, Bronx Community College, CUNY

Faculty of Dental Medicine, University of Sarajevo, Bosnia and Herzegovina

University of Central Oklahoma

Duke University