Website of Research Department of Central South University: http://kxyjb.csu.edu.cn/

Website of Hunan Provincial Science and Technology Department: http://www.hnst.gov.cn/

Website of the National Natural Science Foundation of China: http://www.nsfc.gov.cn/

Website of Humanities and Social Sciences Information Network of Chinese Universities: http://www.sinoss.net/guanli/glgz/ghb/

Website of scientific research and development information platform: http://202.197.71.33/desktop/loginshow?u=http%3A%2F%2F202.197.71.33%2Fzskj%2F

Central South University website: http://www.csu.edu.cn/

Website of Science Research Department of Central South University: http://kxyjb.csu.edu.cn/

Website of School of Nursing, Central South University: http://nursing.csu.edu.cn/