title: Commentary.
authors.affiliation: Professor of Gastroenterology - Department of Internal Medicine Botucatu Medical School - Department of Internal Medicine Distrito de Rubião Jr. s/n - Botucatu, São Paulo state, Brazil. zip code 18.608.917.
authors.forename: Fernando Gomes
authors.initials: FG
authors.lastname: Romeiro
references.citation: J Hepatol. 2005;42 Suppl(1):S13-21
references.pmid: 15777568
references.citation: Lancet. 2007 Feb 3;369(9559):397-408
references.pmid: 17276780
references.citation: Clin Transplant. 2011 Jan-Feb;25(1):E52-60
references.pmid: 20946468
references.citation: Arq Neuropsiquiatr. 2011 Jun;69(3):496-501
references.pmid: 21755129
references.citation: J Neurosci Rural Pract. 2013 Jan;4(1):70-2
references.pmid: 23546359