edited by Eric Y.H. Chen, Head and Professor, Department of Psychiatry, University of Hong Kong, Queen Mary Hospital, Hong Kong, China, Antonio Ventriglio, Psychiatrist, Department of Mental Health, Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy, Dinesh Bhugra, Emeritus Professor of Mental Health and Cultural Diversity, Health Service and Population Research Department, Institute of Psychiatry, King's College London, UK