The network of Shanghai Stroke Service System (4S): a public health-care web-based database using automatic extraction of electronic medical records

- Dong, Yi; Fang, Kun; Liu, Jianren; Zhuang, Jianhua; Wang, Panshi; Chen, Xin; Shen, Haipeng; Wang, David Z.; Xian, Ying; Feng, Wuwei; Campbell, Bruce C. V.; Parsons, Mark; Wang, Xin; Dong, Qiang; Chen, Shengdi; Liu, Xueyuan; Zhao, Yuwu; Guan, Yangtai; Cai, Dingfang; Li, Gang; Liu, Jianmin