CJCP     2022 24 (4):  360-365    ISSN: 1008-8830  CN: 43-1301/R Application of ultrasound-guided endoscopic retrograde appendicitis therapy in children with appendix-related chronic abdominal pain KANG Jian-Qin, ZHANG Wei, ZHANG Ya-Long, LI Yu-Pin, LIN Yan, XIE Xiao-Min, WEI Sha-Sha, ZENG Ling-Chao, WANG Bao-Xi, JIANG Xun Department of Pediatrics, Tangdu Hospital, Air Force Military Medical University, Shaanxi, Xi'an 710038, China Received: 2021-12-02  Revised: null  Online: null Supporting info