∗Department of Psychiatry, Li Ka Shing Faculty of Medicine, The University of Hong Kong

†School of Nursing, The Hong Kong Polytechnic University

‡The Nethersole School of Nursing, The Chinese University of Hong Kong

§Department of Social Work and Social Administration, Faculty of Social Science, The University of Hong Kong, Hong Kong Special Administrative Region, China

∥College of Nursing and Midwifery, Charles Darwin University, Casuarina, Australia

¶State Key Laboratory of Brain and Cognitive Sciences, The University of Hong Kong, Hong Kong Special Administrative Region, China.

Send reprint requests to Sherry Kit Wa Chan, MRCPsych, Department of Psychiatry, The University of Hong Kong, Queen Mary Hospital, Room 219, New Clinical Building, 102 Pokfulam Road, Hong Kong. E-mail: [email protected].