Lasa Juan, Spallone Liliana, Gandara Silvina, Chaar Elsa, Berman Saul, Zagalsky David
Gastroenterology Department. Instituto Quirúrgico del Callao. Buenos Aires, Argentina.
Arq Gastroenterol. 2017 Jan-Mar;54(1):37-40. doi: 10.1590/S0004-2803.2017v54n1-07.