Grau, Teodoro Bonet,Alfonso Rubio, Mercedes Mateo, Dolores Farré, Mercé Acosta, José Antonio Blesa, Antonio Montejo, Juan Carlos García de Lorenzo, Abelardo Mesejo, Alfonso Serón Arbeloa, Carlos and the Working Group on Nutrition and Metabolism of the Spanish Society of Critical Care Liver dysfunction associated with artificial nutrition in critically ill patients Crit. care 10.1186/cc5670 2007 2007