1. School of Economics and Business Administration Chongqing University Chongqing China
2. Department of Ultrasonography, West China Second University Hospital Sichuan University Chengdu China
3. Chengdu Chenghua District Maternal and Child Health Hospital Sichuan University Chengdu China
4. Department of Psychiatry, State Key Lab of Biotherapy West China Hospital of Sichuan University Chengdu China
5. Department of Radiology The First Affiliated Hospital of Chongqing Medical University Chongqing China
6. School of Public Affairs Chongqing University Chongqing China