Published:18 May 2006 Adopted:11 April 2006 on the Wiley Online Library Full article: HTML PDFMetadata DOI:https://doi.org/10.2903/j.efsa.2006.353 Last updated:1 June 2006 Question Number:EFSA-Q-2005-050 AbstractNo abstract available© European Food Safety Authority, 2009 Related topic(s) Methodology