Inferomedial cortical bone contact and fixation with calcar screws on the dynamic and static mechanical stability of proximal humerus fractures. - Zhang, Xiaofeng; Huang, Junwu; Zhao, Lin; Luo, Yi; Mao, Hanxin; Huang, Yanfeng; Chen, Weibing; Chen, Qi; Cheng, Bangjun (Journal of Orthopaedic Surgery & Research, 2019)