1. Department of Medical Psychology, Institute of Biochemistry and Molecular Biology, Binzhou Medical College, Yantai, Shandong, China.
2. Gaomi People's Hospital, Weifang, Shandong, China.
3. Department of Medical Psychology, Shandong University Medical School, Jinan, Shandong, China.
4. Institute of Biochemistry and Molecular Biology, Binzhou Medical University, Yantai, Shandong, China.