RETRACTED: Quantitative role of p42/44 and p38 in the production and regulation of cytokines TNF-α, IL-1β and IL-12 by murine peritoneal macrophages in vitro by Concanavalin A

This article has been retracted: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy).Please note that the reason for this retraction has been updated in January 2012, as follows.The Editors-in-Chief would like to confirm the retraction of this article at the request of both authors, as it duplicates data that had already appeared in Nitric Oxide, 16 (2007) 294–305, doi:10.1016/j.niox.2006.11.001 and J. Interferon Cytokine Res., 27 (2007) 497–506, doi:10.1089/jir.2007.0166, or had been submitted to International Immunopharmacology, later to appear in Int. Immunopharmacol., 7 (2007) 1403–1413, doi:10.1016/j.intimp.2007.07.004. The authors would like to apologize for this administrative error on their part.