Journal Home Journal Content Guidelines Editorial Board Aims and Scope Subscriptions Library Recommendation Alerts & RSS Online Sample Top 5 Articles Rates 2009 Order Information Search in this journal This journal is part of the fourth subject package of the Karger Journal Archive Collection Information on packages (PDF) Free sample issues For non-native English speakers and international authors who would like assistance with their writing before submission, we suggest American Journal Experts for their scientific editing service.  © 2009 S. Karger AG, Basel