1. Department of Virology, School of Public Health, Key Laboratory for Experimental Teratology of the Ministry of Education, Shandong University, Jinan, Shandong, China.
2. Department of Clinical Laboratory, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, China.
3. Department of Internal Neurology, The Mental Hospital of Jinan City, Jinan, Shandong, China.
4. Department of Medical Administration, Jinan Central Hospital Affiliated to Shandong University, Jinan, Shandong, China.