If in the future you have any questions about this study, you should contact Dr. Qin Liu at Chongqing Medical University, 18623598789; Email: liuqin@cqmu.edu.cn;

如果您对这个研究还有任何问题，请直接与重庆医科大学的刘琴教授联系，电话：18623598789。Email: liuqin@cqmu.edu.cn