CJCP     2011 13 (6):  455-457    ISSN: 1008-8830  CN: 43-1301/R Causes of hematochezia in exclusively breast fed infants LIU Jie, DING Yan, MEI Hong Department of Gastroenterology, Wuhan Children's Hospital, Wuhan 430016, China. 921791845@qq.com Received: null  Revised: null  Online: null Supporting info