The effectiveness of a co-management care model on older hip fracture patients in China – A multicentre non-randomised controlled study oleh Jing Zhang, Minghui Yang, Xinyi Zhang, Jiusheng He, Liangyuan Wen, Xianhai Wang, Zongxin Shi, Sanbao Hu, Fengpo Sun, Zishun Gong, Mingyao Sun, Qiang Li, Ke Peng, Pengpeng Ye, Ruofei Ma, Shiwen Zhu, Xinbao Wu, Ruth J Webster, Rebecca Q Ivers, Maoyi Tian