CJCP     2010 12 (11):  858-863    ISSN: 1008-8830  CN: 43-1301/R Ambroxol for the prevention of respiratory distress syndrome in preterm infants: a Meta analysis ZHANG Zhi-Qun, HUANG Xian-Mei, LU Hui Department of Pediatrics, Hangzhou First People's Hospital, Hangzhou 320006, China. Email: zzqzyh1979@hotmail.com Received: null  Revised: null  Online: null Supporting info