title: [Patient information. Ecoendoscopy or endoscopic ultrasonography].
authors: Facultativo Especialista de Area, Servicio de Gastroenterología, Hospital Ramón y Cajal, Madrid.
authors: E
authors: E
authors: Vázquez Sequeiros
authors: M J
authors: MJ
authors: Levy
mesh_terms: D019160:Endosonography