Lourenço Luís Carvalho, Martins Alexandra, Oliveira Ana Maria, Horta David Valadas, Reis Jorge
Gastroenterology Department, Hospital Prof. Doutor Fernando Fonseca, Amadora, Portugal.
GE Port J Gastroenterol. 2017 Jan;24(1):50-52. doi: 10.1159/000450873. Epub 2016 Nov 16.