RETRACTED: Trauma, khat and common psychotic symptoms: A quantitative study

This article has been retracted: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy).This article has been retracted at the joint request of the publisher, the editor and the authors.This article was erroneously published in issue 131/2 (2010). The correct and full version of this article has been published in issue 132/3 (2010). The publisher would like to apologize for any inconvenience caused.