1Expert consensus on acne diagnosis and treatment with integrated traditional Chinese and Western medicineGuidelines and consensus257-2602Effect of isoliquiritigenin on collagen synthesis of keloid fibroblasts and its mechanismZHANG Hui-juan, WANG Qiang, YAO FangOriginal articles261-2653Effects of IL-6 on lipogenesis of human SZ95 sebocytes in vitroHU Ting-ting, HOU Pin-pin, WEI Zi-yuOriginal articles266-2694Meta-analysis of the relationship between systemic lupus erythematosus and periodontal diseaseYANG Meng, LIAO Yun-ni, ZHU Qing-huanOriginal articles270-273,2785Angiosarcoma of the face and scalp: 7 cases clinical analysis and literature reviewYANG Hui, CHEN Yong-guo, CUI JingClinical studies274-2786A retrospective analysis of the clinical effect of different bands of intense pulsed light in the treatment of erythromelanosis follicularis faciei et colliZHANG Rong-li, GAO Ni, GAO LinClinical studies279-2827Fractional CO2 laser assisted treatment for acral vitiligo: a Meta-analysisCAO Jun, REN Ling, WANG YunClinical studies283-2878Update on epigenetics of cutaneous melanomaZHANG Xiao-min, MO Hui-hui, LIAO Le-xiReviews288-2919Recent study progress on clinical manifestations and treatments of cutaneous adverse reactions caused by anti-tumor targeted drugsWANG Chen, ZHANG Shou-minReviews292-29610Advances in the treatment of rosacea by intradermal injection of botulinum toxinZENG Dai-lin, YU Bo, WU LinReviews297-30011Clinical research on skin manifestations of COVID-19HE Li, ZHU WeiReviews301-30312Teaching practice and exploration of ideological and political education in the course of dermatovenereologyYOU YiTeaching dermatology304-30613A case of pityriasis circinateWANG Ting, WU Ya-guang, ZHANG LianCase reports307-30814A case of toxic epidermal necrolysis induced by pembrolizumabHE Xu, LV Cong-cong, BI Xin-lingCase reports309-31115A case of reactive cutaneous capillary endothelial proliferation caused by camrelizumabLIU Lin-li, WANG Han-wen, HUANG Ya-lanCase reports312-31416Gene mutation detection for a patient with Olmsted syndromeDENG Wei, SU Wei, LIU Xiao-yanCase reports315-31817A case of giant cell tumor of tendon sheath on ankleLUO Xue-jiao, LI Yan-li, HU Ya-lanCase reports319-320 