Fraga Maria, Silva Maria João Nunes da, Lucas Margarida
Medicine 2 Department, Hospital de Santa Maria Centro Hospitalar de Lisboa Norte, Lisbon, Portugal.
GE Port J Gastroenterol. 2016 Apr 4;23(5):270-272. doi: 10.1016/j.jpge.2016.01.005. eCollection 2016 Sep-Oct.