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- You have accessFever of unknown origin as the first manifestation of colonic pathologyMoncef Belhassen-García, Virginia Velasco-Tirado, Amparo López-Bernus, Montserrat Alonso-Sardón, Adela Carpio-Pérez, Lucía Fuentes-Pardo, Javier Pardo-Lledías, Lucia Alvela-Suárez, Ángela Romero-Alegría, Alicia Iglesias-Gomez and Miguel Cordero SánchezClin Med April 2013, DOI: https://doi.org/10.7861/clinmedicine.13-2-141