Authors: Ci Song, Pei Qin Department of Health Management, School of Public Health, Nanjing Medical University Corresponding authors: Ci Song, PhD, Department of Health Management, School of Public Health, Nanjing Medical University, 101 Longmian Road, Jiangning District, Nanjing, Jiangsu 211166, P. R. China (songci@njmu.edu.cn; Researchgate: https://www.researchgate.net/profile/Ci-Song-14). Why is this project important? Physical activity and health […]