1Effect of metal fatigue induced by nap deprivation on cognitive function and heart rate variabilityFAN Jieyi, WANG Liang, XIE Manjiang, NING Zhibo, LI Xi, FENG Xu, LUO Zhengxue217-2202Establishment of competency model for civil aviation medical examinersMOU Lin, GAO Li, LIU Yao221-2243Epidemiological survey of low back pain among flight maintenance ground crews in an aviation force baseHOU Zhenhai, HAO Zengming, ZHU Jia, ZHOU Dongming, FAN Liangquan, ZHENG Yuxiang, YE Hong225-2274Meta-analysis of the main disease spectrum of flight personnel in China and the United StatesWANG Guangyun, KONG Dewen, WANG Jia, CUI Li, ZHANG Ling228-2335Application of data information management system for psoriasis patients to generalized pustular psoriasisZHU Kun, PANG Xiaowen, LIU Fang, LIU Wei240-2436Therapeutic effect of alprostadil alone against diabetic nephropathy and its effects on levels of glutathione C and homocysteine in patientsTONG Xiaojing, BIAN Lili, LIU Yanqing244-2477Relationships between lacunar infarction and serum cystatin C levels in type 2 diabetes mellitusSHENG Zhao248-250,2688Effects of Xiaoketongbi granules on EPCs migration and angiogenic ability under high glucoseLV Juan251-2549Ultrasound-guided aspiration and sclerotherapy of 226 cases of senile renal cysts using lauromarcogol and anhydrous ethanolWU Tao255-25710Correlation between serumIL-6 and IL-12 levelsanddisease progressioninpatientswithhepatitisCXIE Mei, WANG Fang258-26111Preliminary study of spatiotemporal image correlation in evaluating fetal cardiac functionZHANG Maochun, ZHANG Hongwei262-26412Effect of Xianzhuli oral liquid combined with methylprednisolone sodium succinate on inflammatory indexes in children with pulmonary infectionSUN Qing, LUO Jun, ZHAO Liang, FU Qifang, LI Weifeng265-26813Effect of caffeine citrate on the improvement of blood gas and β-endorphinin of preterm infants with apneaZHANG Jinrong, XIONG Tiantian, JIANG Hong269-27114Analysis of related factors of gastric residual volume in elderly patients with nasal feedingHUANG Nan, LI Wenqing, DING Yu, ZUO Guoqin272-273 