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Bucher HU, Ochsner Y, Fauchére JC; Swiss Neonatal Network.Bucher HU, et al.Swiss Med Wkly. 2003 Feb 8;133(5-6):93-9. doi: 10.4414/smw.2003.10099.Swiss Med Wkly. 2003.PMID: 12644963Free article.