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Daniel Lundin, Simonetta Gribaldo, Eduard Torrents, Britt-Marie Sjöberg* and Anthony M Poole*
* Corresponding authors: Britt-Marie Sjöberg britt-marie.sjoberg@molbio.su.se - Anthony M Poole anthony.poole@canterbury.ac.nz
BMC Evolutionary Biology 2010, 10:383 doi:10.1186/1471-2148-10-383