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Original Article
Ricardo Diez Valle, Ascension Lopez-Diaz de Cerio, Susana Inoges, Sonia Tejada, Fernando Pastor, Helena Villanueva, Jaime Gallego, Jaime Espinos, Javier Aristu, Miguel Angel Idoate, Enrique Andreu, Maurizio Bendandi 
World J Clin Oncol 3(11):142-149. Published online Nov 10, 2012. doi: 10.5306/wjco.v3.i11.142