CJCP     2011 13 (9):  711-714    ISSN: 1008-8830  CN: 43-1301/R A follow-up of the survival and medical factors responsible for the termination of treatment in very or extremely low birth weight infants TANG Ya-Nan, WEI Ling, TANG Yan-Yan, WANG Zhao-Hong, ZHANG Hui-Min, ZHAO Feng-Lin Department of Pediatrics, Peking University Third Hospital, Beijing 100191, China. yayaro@sohu.com Received: null  Revised: null  Online: null Supporting info