1. School of Engineering, Qufu Normal University, Rizhao, China
2. School of Computer Science, Qufu Normal University, Rizhao, China
3. School of Foundational Education, University of Health and Rehabilitation Sciences, Qingdao, China
4. Qingdao Central Hospital, University of Health and Rehabilitation Sciences, Qingdao, China
5. Library of Qufu Normal University, Rizhao, China
6. School of Health and Life Sciences, University of Health and Rehabilitation Sciences, Qingdao, China