GE-Portuguese Journal of Gastroenterology Print version ISSN 2341-4545
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RIBEIRO, Andreia; FREIRE, Gonçalo and ALVES, Marlene.A Long History of Constipation. GE Port J Gastroenterol [online]. 2020, vol.27, n.2, pp.144-146.
ISSN 2341-4545.