CJCP     2012 14 (09):  719-723    ISSN: 1008-8830  CN: 43-1301/R A new component of breast milk: microRNA YU Zhang-Bin, GUO Xi-Rong Department of Pediatrics, Nanjing Maternal and Child Health Hospital Affiliated to Nanjing Medical University, Nanjing 210004, China. xrguo@njmu.edu.cn Received: null  Revised: null  Online: null Supporting info