CJCP     2011 13 (9):  704-707    ISSN: 1008-8830  CN: 43-1301/R Effects of bifidobacteria on respiratory and gastrointestinal tracts in neonates receiving mechanical ventilation WU Xiang-Lan, LI Yue-Feng, ZHOU Bei-Yan, WU Li-Juan, WU Zhi-Jun Bao′an District Maternity and Child Health Hospital of Shenzhen, Shenzhen, Guangdong 518133, China. szwuxl2008@sina.com Received: null  Revised: null  Online: null Supporting info