2008. Supplementum 164: Annual Joint Meeting of the Swiss Societies for Paediatrics, for Child and Adolescent Psychiatry and for Paediatric Surgery (Lugano, Switzerland, June 19-21, 2008). Swiss Medical Weekly. 138, 2324 (Jun. 2008), Suppl. 164. DOI:https://doi.org/10.4414/SMW.2008.w30267.