Vinaya Manchaiah is Jo Mayo Endowed Professor in the Department of Speech and Hearing Sciences at Lamar University, USA. He is also the co-founder of the not-for-profit and non-governmental organization Audiology India. Berth Danermark is Professor of Sociology in the School of Health and Medical Sciences at Örebro University, Sweden. He is the director of doctoral studies at the Swedish Institute for Disability Research.