CJCP     2022 24 (10):  1124-1129    ISSN: 1008-8830  CN: 43-1301/R Efficiency of electrocardiogram monitor for positioning the catheter tip in the central catheter placement via lower extremity veins in neonates: a randomized controlled study LING Qi-Ying, WEI Jiao, WAN Ge, QU Yi, TANG Bin-Zhi Department of Pediatrics, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital/University of Electronic Science and Technology of China, Chengdu 610072, China Received: 2022-04-04  Revised: null  Online: null Supporting info