CJCP     2014 16 (6):  601-605    ISSN: 1008-8830  CN: 43-1301/R Prognostic factors in very low birth weight infants and extremely low birth weight infants WANG Lian, LI Juan, MAO Jian, ZHANG Jing, CHEN Dan Department of Neonatology, Shengjing Hospital, China Medical University, Shenyang 110004, China Received: 2013-11-07  Revised: 2014-01-10  Online: null Supporting info null