1The application of reflectance confocal microscopy in efficacy evaluation of vitiligoJIN Weimei, MA Jie, SUO Cuiping, ZHAO JianbinOriginal articles129-1322Screening and validation of microRNA related to the regulation of Rab23 and the prognosis of head and neck squamous cell carcinomaYANG Yang, LI Kun, SUN Weiguo, HU Yongliang, SHI Yuehan, LI TinghuiOriginal articles133-1383The application of platelet-rich plasma in melasma:a system review and single-arm meta-analysisCHEN Weiquan, ZHU Yao, ZHANG Ruining, WEI Rujing, LI Fanggu, CAI ChuanchuanOriginal articles139-145,1664Skin lesions analysis for SARS-CoV-2 infection in childrenZHANG FangfangClinical studies146-148,1545Analysis of Epidemiological characteristics of hair diseases in children in TangshanSU Chenlin, WANG Chunshuang, YANG Lijun, LIU ChunjingClinical studies149-1546Effect of secukinumab in combination with methotrexate in the treatment of moderate-to-severe psoriasisLI Ping, SONG Wentao, ZHANG JiahaoClinical studies155-1587Update of classic Ehlers-Danlos syndromeYANG Jianqiu, ZHOU Qianqian, LI MinReviews159-1628Research progress on the clinical diagnosis and treatment of pilomatrical carcinomaWANG Peng, HAN JuntaoReviews163-1669Research progress of high-frequency ultrasonography in acne vulgarisYANG Bei, ZHANG Weiyang, SHI ChunruiReviews167-17110Microneedling in alopecia areata:a reviewZHANG Yue, XIA RushanReviews172-175,17911The experience of Professor Liu Aimin for treating trichotillomania from the perspective of heart and liverSHEN Rongrong, LU Lingling, XING Huijie, GUO Danlei, WANG Li, LIU AiminTraditional Chinese medicine176-17912Strengthening the application of dermatopathology education in dermatologists trainingLIU Meng, WANG Ziyang, YANG Yajie, Bai Ruimin, Zheng YanTeaching dermatology180-181,18613A case of papillon-lefèvre syndromePI Yuhao, LIU LingCase reports182-18414A case of storiform collagenomaWU Hao, YANG YangCase reports185-18615A Case of molluscum contagiosum following dupilumab treatment for atopic dermatitisYANG Liu, XU Chenchen, YANG Jiao, CUI Bingnan, ZHANG Xiaoya, WANG NingCase reports187-18916A case of eosinophilic pustular folliculitis misdiagnosed as tinea facialisGUO Qianna, ZHENG Xiufen, WANG Ruihua, CHEN Chunmei, TANG Hongfeng, Hu YongCase reports190-192 