1International Working Group on the Diabetic Foot Guideline on diagnosis, prognosis and management of peripheral artery disease in patients with a foot ulcer and diabetes: Part of the 2019 IWGDF Guidelines on the prevention and management of diabetic foot disease195-2062International Working Group on the Diabetic Foot Guideline on the diagnosis and treatment of foot in fection in persons with diabetes: Part of the 2019 IWGDF Guidelines on the prevention and management of diabetic foot disease207-2293International Working Group on the Diabetic Foot Guideline on interventions to enhance healing of foot ulcers in persons with diabetes: Part of the 2019 IWGDF Guidelines on the prevention and management of diabetic foot disease2304International Working Group on the Diabetic Foot Guideline on the classiifcation of diabetic foot ulcers: Part of the 2019 IWGDF Guidelines on the prevention and management of diabetic foot disease231-2375Development and methodology of the International Working Group on the Diabetic Foot Guidelines: Part of the 2019 IWGDF Guidelines on the prevention and management of diabetic foot disease238-2436Investigation on the establishment of working mode of diabetic foot studio in primary hospitalWang Xiuhong, Li Binghui, Sun Yi, Zhang Wenwen, Zheng Jie, Long Piao, Li Jun, Peng Jinghua244-2467Effects of interleukin-33 on the immune dysfunction of dendritic cells in septic miceYin Yue, Wang Lixue, Dong Ning, Wu Yao, Tong Yalin, Zhu Xiaomei, Yao Yongming247-2528Analysis of the risk factors and preventive measures for nosocomial infection in patients with severe viral hepatitisXie Yongqiong, Yan Fei253-255 