1. Department of Psychological Medicine, Peking Union Medical College Hospital Chinese Academy of Medical Sciences and Peking Union Medical College Beijing China
2. Department of Psychology “Renzo Canestrari” University of Bologna Bologna Italy
3. Department of Medicine, Division of General Medicine Columbia University Irving Medical Center New York NY USA
4. Department of Medical and Surgical Sciences, IRCCS‐S. Orsola‐Malpighi Hospital University of Bologna Bologna Italy
5. Unit of Metabolic Diseases and Clinical Dietetics, IRCCS‐S. Orsola‐Malpighi Hospital University of Bologna Bologna Italy
6. Department of Psychiatry, University at Buffalo State University of New York Buffalo NY USA