Vee P. Prasher is Associate Professor – Neurodevelopmental Psychiatry within Birmingham Specialist Community Health NHS Trust (Services for People with Learning Disabilities), United Kingdom.Matthew P. Janicki is Research Associate Professor, Department of Disability and Human Development, University of Illinois at Chicago, United States of America. Foreword written by Robert Cooke, M.D., Senior Health Advisor to the Joseph P. Kennedy, Jr., Foundation and originator of the National Institute for Child Health and Human Development in the United States of America