Authors
Qian-Qian He
School of Management, Shanxi Medical University, Taiyuan, China
Jun-Feng Zhang
School of Management, Shanxi Medical University, Taiyuan, China
The Publishing house, Chinese Journal of Rheumatology, Taiyuan, China
© 2018 Qian-Qian He, Jun-Feng Zhang, published by Shanxi Medical Periodical Press
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.