CJCP     2010 12 (11):  867-869    ISSN: 1008-8830  CN: 43-1301/R Influencing factors of umbilical cord separation in full-term newborns ZHANG Cong, CHENG Hui, LV Jian Department of Pediatrics, Third Affiliated Hospital of Xuzhou Medical College, Xuzhou, Jiangsu 221003, China. Email: zsd1963@sina.com Received: null  Revised: null  Online: null Supporting info