1. Quantitative evaluation of economic level effects on physical fitness condition among elderly population in Hebei province of China. Issue 1 (7th December 2017) Authors: Yuan, Li; Jianzhong, Chai; Lijuan, Liu; Xiaofeng, Ji; Yan, Zhang; Xiangang, Yang Journal: Physical activity and health Issue: Volume 1:Issue 1(2017) Page Start: 17 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗