1. Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an, P. R. China
2. Department of Psychiatry, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, P. R. China
3. Institute for Molecular Medicine Finland (FIMM), University of Helsinki, Helsinki, Finland
4. Center for Translational Medicine, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, P. R. China