Johns Hopkins

University of Calgary, Dept of Psychology, Dept of Physiology and Pharmacology

Professor of Psychiatry of Ageing, University College London

Department of Otolaryngology, University of Tokyo

University of Colorado at Boulder

Faculty of Medical and Health Sciences & Sagol School of Neuroscience, Tel Aviv University

Professor of Audiology

Leiden University / University of Twente / University College London

Emeritus Professor of Otolaryngology, Johns Hopkins University, Baltimore, MD

Emeritus Professor, Vanderbilt University Medical Center