Article Takedown/Update Request

This is an update request for the document Review by Nahum Méndez-Sánchez, Norberto C. Chávez-Tapia, Daniel Zamora-Valdés and Misael Uribe

Your paper was deposited in PubMed Central and appears online at http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=3099350
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