2ADE HALL RA,MOORE AP.Botulinum toxin type A in the treatment of lower limb spasticity in cerebral palsy (Cochrane Review)[DB/OL]. http://www.cochranelibrary.com,2002-08-01.
3OSBORN DA.Thyroid hormones for preventing neurodevelopmental impairment in preterm infants(Cochrane Review)[DB/OL].http://www.cochranelibrary.com,2002-08-01.
4CROWTHER CA,HENDERSON SMART DJ.Vitamin K prior to preterm birth for preventing neonatal periventricular hemorrhage(Cochrane Review)[DB/OL].http://www.cochranelibrary.com,2002-08-01.
5HALLIDAY HL,EHRENKRANZ RA.Early postnatal( < 96 hours) corticosteroids for preventing chronic lung disease in preterm infants(Cochrane Review)[DB/OL].http://www.cochranelibrary.com,2002-08-01.
6HALLIDAY HL,EHRENKRANZ RA.Moderately early(7- 14 days) postnatal corticosteroids for preventing chronic lung disease in pre term infants(Cochrane Review)[DB/OL].http://www.cochranelibrary. com,2002-08-01.
7HALLIDAY HL,EHRENKRANZ RA.Delayed(>3 weeks) posinstal corticosteroids for chronic lungt disease in prelerm infants (Cochrane Re-view)[DB/OL].http://www.cochranelibrary.com.2002-08-01.
