title: ERCP training: every time more difficult.
authors: Jesús
authors: J
authors: García-Cano
mesh_terms: D002760:Cholangiopancreatography, Endoscopic Retrograde; D002983:Clinical Competence; D004502:Education, Medical, Continuing / Q000379:methods*; D005762:Gastroenterology / Q000193:education*; D006801:Humans