Sánchez-Muñoz Diego, Castro-Fernández Manuel, Ortiz-Moyano Carlos
Unit for the Clinical Management of Digestive Diseases, Hospital Universitario de Valme, Sevilla, Spain.
Gastroenterology. 2008 Oct;135(4):e6-7. doi: 10.1053/j.gastro.2008.08.012. Epub 2008 Sep 7.