1Research advances of systemic endotheliopathy in traumatic shockYin Wen, Feng ZhushengFORUM FOR EXPERTS801-8042Repair of infected femoral bone defect with vascularized free fibula graft using unilateral ex-ternal fixatorLiu Kai, Liu Yanshi, Cai Feiyu, Alimujiang·Abulaiti, Ren Peng, Aihemaitijiang·YusufuORIGINAL ARTICLES805-8093Prediction of secondary infection in patients with early fever after internal fixation of limb fractures by serum PCT,hs-CRP and ESRCao Jiamin, Qi Han, Han Xuegan, Xiao GuangqingORIGINAL ARTICLES810-8174Expression of PD-1 in peripheral blood T lymphocytes of patients with sepsisLi Shaohong, Zhong Jian, Chen Dan, Zhang Wei, Zhang Leiyun, Yu Tao, Huang ZitongORIGINAL ARTICLES818-822,8275Effect of combined use of tranexamic acid in reducing perioperative blood loss during internal fixation of humeral fracturesWang Taoran, Gao Jiakai, Bi Long, Sun Shoubin, Hao Zhilong, Li Zewei, Pan Jingxin, Niu ZhixiaORIGINAL ARTICLES823-8276Clinical efficacy of locking plates and nonoperative treatment for proximal humeral fractures in the elderlyLiu Hao, Wang Feng, Zheng Xiaohui, Tu ZhiyuanORIGINAL ARTICLES828-832,8437Clinical study on treatment of calcaneal fracture with external fixation combined with postop-erative hyperbaric oxygenChen Zhiming, Huang HaoORIGINAL ARTICLES833-8368Clinical observation of 3D image O-arm based navigation system guided cannulated screw in-ternal fixation in the treatment of senile traumatic femoral neck fractureChen Huiting, Cai Jian, Chen JinxiongORIGINAL ARTICLES837-8409Efficacy of radiofrequency ablation assisted spleen-preservation surgery for the treatment of traumatic splenic ruptureWang Wei, Xia HuiORIGINAL ARTICLES848-85310Application of arterial tube combined with polyethylene glycol in the treatment of peripheral nerve injury in ratsNie Guangchen, Xue Yan, Hao Xuguang, Liu Li, Shi Jian, Fang Yuli, Liu YongORIGINAL ARTICLES854-85811Research progress of biomarkers for early diagnosis of sepsis after multiple traumaJi Shuqing, Zhao WeiREVIEWS859-864,87012Progress in sepsis targeted drug therapyLiu Yuxin, Xiang HongliREVIEWS865-87013Progress of clinical diagnosis and treatment of crush injury/crush syndrome by earthquakeLiu Hongxia, Tang Na, Lan Lin, Tang LiREVIEWS871-874 