Professor of Medicine
College of Medicine – Memphis
Department of Medicine
Chief of Infectious Diseases
Division of Med Infectious Diseases
University of Tennessee Health Sciences Center
Memphis, TN
Chief of Infectious Diseases, Providence Portland Medical Center (1971-Presently emeritus status)
Professor of Medicine, Oregon Health & Sciences University (1971-Present)
Co-Editor, Sanford Guide of Antimicrobial Therapy
Division Chief, USF and Johns Hopkins All Children’s Pediatric Allergy and Immunology Programs
Robert A Good Endowed Chair of the USF Division of Pediatric Allergy and Immunology
Associate Professor of Pediatrics, Medicine, and Molecular Biology, USF Morsani College of Medicine