3Kleiber C. Clinical implications of deep and shallow suctioning in neo- natal patients [ J ]. Focus Crit Care, 1986,13 (4) : 36 - 39.
4Youngmee A, Yonghoon J. The effects of the shallow and the deep en- dotracheal suctioning on oxygen saturation and heart rate in high - risk infants [ J ]. Int J Nuts Stud,2003,40 (2) :97 - 104.
5Gillies D, Spence K. Deep versus shallow suction of endotracheal tubes in ventilated neonates and young infants[ M/CD 1- Conhrane Database Syst Rev ,2011,7 : CD003309.
6Vergani P,Locatelli A,Doria V,et al.Intraventricular hemorrhage and periventricular leukomalacia in preterm infants[J].Obstet Gynecol,2004,104(2):225-231.
7Babnik J,Stuein-Gantar I,Kornhanser-Cerar L.et al.Intrauterine inflanimation and the onset of peri-intraventricular hemorrhage in premature infants[J].Biol Neonate,2006,90(2):113-121.
8Spinillo A,Gardella B,Preti E,et al.Preeclampsia and brain damage among preterm infants:a changed panorama in a 20-year analysis[J].Am J Perinatol,2007,24(2):101-106.
9Rocha G,Proenca E,Quintaa C,et al.Chorioamnionitis and brain damage in the preterm newborn[J].J Matern Fetal Neonatal Med,2007,20(10):745-749.
10Osborn DA,Evans N,Kluckow M.Hemodynamic and antecedent risk factors of early and late periventricular/intraventricular hemorrhage in premature infants[J].Pedaitrics,2003,112(1 Pt 1):33-39.
