Professor Emeritus, Clinical Sciences, College of Veterinary Medicine, North Carolina State University (past)
Professor, Clinical Sciences, College of Veterinary Medicine, North Carolina State University (past)
Professor, Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State University (past)
Associate Faculty, Environmental and Molecular Toxicology, College of Agriculture and Life Sciences, North Carolina State University (past)
Professor, Environmental and Molecular Toxicology, College of Agriculture and Life Sciences, North Carolina State University (past)
Adjunct Professor, Department of Biomedical Engineering, College of Engineering, North Carolina State University (past)
Professor, Department of Biomedical Engineering, College of Engineering, North Carolina State University (past)
Research/ Clinical Professor, Department of Dermatology, School of Medicine, University of North Carolina at Chapel Hill (past)
Professor, Department of Biomedical Engineering, School of Medicine, University of North Carolina at Chapel Hill (past)
Professor, Investigative Dermatology and Toxicology, North Carolina State University (past)
Professor Emeritus, Center for Chemical Toxicology Research and Pharmacokinetics, College of Veterinary Medicine, North Carolina State University (past)
Professor, Center for Chemical Toxicology Research and Pharmacokinetics, College of Veterinary Medicine, North Carolina State University (past)
Biotechnology, Plant and Microbial Biology, College of Agriculture and Life Sciences, North Carolina State University (past)
Comparative Biomedical Sciences, Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State University (past)
University Distinguished Professor, Department of Anatomy and Physiology, College of Veterinary Medicine, Kansas State University