Year    Vol.    Issue    pp.        2009  2008  2007  2006  2005  2004  4 No. 6 487-614 2004   No. 5 415-486 2004   No. 3-4 215-414 2004   No. 2 67-212 2004   No. 1 1-64 2004 2003  2002  2001    Journal Home Journal Content Guidelines Editorial Board Aims and Scope Subscriptions Library Recommendation Alerts & RSS Online Sample Top 10 Articles Search in this journal 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