Mobile collaborative working environment of product design

by Zheng, Yongjun
Published 2009

A survey of chronic pain in China

by Zheng Yongjun, Zhang Tingjie, Yang Xiaoqiu, Feng Zhiying, Qiu Feng, Xin Guangke, Liu Jinfeng, Nie Fachuan, Jin Xiaohong, Liu Yanqing
Published 2020-01-01