M Casanova Dias1, D Giacco2, C Hanon3. 1. Institute of Psychological Medicine and Clinical Neurosciences, Cardiff University School of Medicine, Hadyn Ellis Building, Maindy Road, Cathays, Cardiff CF24 4HQ, United Kingdom. Electronic address: marisa.dias@gmail.com. 2. Unit for Social and Community Psychiatry, Queen Mary University of London, London, United Kingdom. 3. Regional Resource Centre of old age Psychiatry, Corentin-Celton Hospital, Paris-Descartes University, 92130 Issy-les-Moulineaux, France.