1Research progress of VETC carcinoma nest-type hepatocellular carcinomaYANG Jian-rong, LIU Tian-qi, ZHENG Shu-sen529-5332Management of valvular heart disease: the suitable population for transcatheter intervention—insight from the 2020 ACC/AHA guideline for the management of patients with valvular heart diseaseDU Yu, LIU Wei, ZHOU Yu-jie534-5393Pathophysiological mechanism of heart failure complicated with left bundle branch block and cardiac magnetic resonance analysisCHANG San-shuai, DONG Jian-zeng540-5444Clinical research progress of sacubitril/valsartan in patients suffering from heart failure with preserved ejec-tion fractionWANG Hong, LOU Qi, LI Wei-min545-5485Application of cardiac magnetic resonance in pathogeny analysis of heart failureYANG Ying-xia, LU Min-jie549-5536Research progress in evidence-based evidence and mechanisms of sodium-glucose cotransporter 2 inhibitors in treatment of heart failureLIANG Zhi-shan, XU Zhi-meng, JI Qing-wei554-5587Application advances in cardiac resynchronization therapy and His-Purkinje system pacing for chronic heart failure complicated with complete left bundle branch blockLU Zheng-de, SHI Lei, HU Chang-xing559-5648The efficacy of prourokinase combined with tirofiban in prevention of no-reflow/slow-flow in patients with acute ST-segment elevation myocardial infarction during emergency PCICHEN Li-hua, SHEN Sheng-chun, XIANG Ming-jun565-5699Diagnostic value of the combined detection of miRNA-144 and miRNA-21 in saliva for esophageal cancerGU Jia-sheng, WU Wei-dong, LIU Qing-feng570-57310Effect of intestinal microecological preparation combined with glutamine on postoperative immune function of patients with colorectal cancerYA Han-qing, WANG Long, LIU An-lin574-57711Cone beam computed tomography quantitative analysis of root resorption of maxillary anterior teeth before and after compensatory treatment for skeletal Class Ⅱ high angle malocclusion in adultsGAO Juan, WEI Xue, ZUO Chang-yan578-58112Effect of butylphthalide injection combined with intelligent robot hand on treatment of hemiplegic hands in acute cerebral infarction patients and its influence on cerebral blood flow velocityCHEN Bin, WU Xian-ru, LING Zheng582-58613Renal injury in myeloma presenting with interstitial nephritis: a clinicopathological analysisLIU Meng-meng, WANG Xi-feng, LIU Xing-hua586-58914Application value of percutaneous choledochoscopy in removal of severe acute pancreatitis secondary to infected pancreatic necrosisJIANG Han-cheng, JIANG Shui-ming, ZHOU Min590-59415Expression of tumor-associated antigen MAGE-D4 in hepatocellular carcinoma and its significanceLUO Xin, SHEN Ning, LIU Chang594-59916Construction and analysis of competing endogenous RNAs regulatory network in chromophobe renal cell car- cinomaLI Bing-ying, LIU Chang, LI Feng600-60517The value of infection and blood coagulation related indicators in diagnosis of chronic prosthetic joint infectionZHANG Yong-chao, HUANG Jin-cheng, ZHANG Xin-an606-61018A study on the association between folic acid levels and end-point events of cardio-cerebrovascular disease and its gender differencesYANG Zhi-kang, HEIZHATI·Mu-la-li-bie-ke, WANG Lin611-61519Research progress in endoscopic management of gastric varicesZHOU Qing-nan, GUO Xian-wen, ZHANG Guo620-62420Research progress in the pathogenesis of cholangiocarcinoma caused by liver flukesXIE Hong-dan624-628 