Affiliation: | 1. Otorhinolaryngology Department, Faculty of Medical Sciences, University of Nigeria, Enugu Campus, Nigeria;2. Department of Otorhinolaryngology, University of Nigeria Teaching Hospital, Ituku-Ozalla, Enugu, Nigeria;1. Department of Histopathology, The University of Calgary Calgary, Alberta, Canada;2. Department of Clinical Neurosciences, The University of Calgary Calgary, Alberta, Canada;3. Foothills Hospital, Calgary, Alberta, Canada |