Ennapadam S. Krishnamoorthy is Director and T. S. Srinivasan Chair, The Institute of Neurological Sciences, VHS Hospital, Chennai, India.
Martin J. Prince is Professor of Epidemiological Psychiatry at the Institute of Psychiatry, London, UK.
Jeffrey L. Cummings is Augustus Rose Professor of Neurology, Professor of Psychiatry and Biobehavioral Sciences, Director of the UCLA Alzheimer's Disease Center and Director of the Deane F. Johnson Center for Neurotherapeutics, David Geffen School of Medicine, UCLA, Los Angeles, California, USA.