Affiliation: | 1. Irish Longitudinal Study on Ageing, Trinity College, , Dublin, Ireland;2. School of Nursing Sciences, University of East Anglia, , Norwich, Norfolk, UK;3. Department of Medical Physics and Bioengineering, St. James's Hospital, , Dublin, Ireland;4. Mercer's Institute for Research on Ageing, St. James's Hospital, , Dublin, Ireland;5. Trinity College Institute of Neuroscience, Trinity College, , Dublin, Ireland |