Monatsschrift KinderheilkundeSeptember 2001, Volume 149, Issue 9, pp 969–976 | Cite asMitteilungenAuthorsAuthors and affiliations 19 Downloads This is a preview of subscription content, log in to check access.PreviewUnable to display preview. Download preview PDF.Unable to display preview. Download preview PDF.Copyright information© Springer-Verlag Berlin Heidelberg 2001Authors and Affiliations There are no affiliations available