title: Guidewire cannulation: Are we moving in the opposite direction from evidence-based medicine?
authors.affiliation: Gastrointestinal Endoscopy Division, Clinical Hospital of University of São Paulo, São Paulo, Brazil.
authors.forename: Everson L A
authors.initials: EL
authors.lastname: Artifon
authors.affiliation: Gastrointestinal Endoscopy Division, Clinical Hospital of University of São Paulo, São Paulo, Brazil.
authors.forename: Joel F
authors.initials: JF
authors.lastname: Oliveira
authors.affiliation: Gastrointestinal Endoscopy Division, Clinical Hospital of University of São Paulo, São Paulo, Brazil.
authors.forename: Eduardo T H
authors.initials: ET
authors.lastname: Moura
authors.affiliation: Gastrointestinal Endoscopy Division, Clinical Hospital of University of São Paulo, São Paulo, Brazil.
authors.forename: Eduardo G H
authors.initials: EG
authors.lastname: Moura
mesh_terms: D014670:Ampulla of Vater / Q000601:surgery*; D002760:Cholangiopancreatography, Endoscopic Retrograde / Q000009:adverse effects*; D042883:Choledocholithiasis / Q000601:surgery*; D002779:Cholestasis / Q000601:surgery*; D003135:Common Bile Duct / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D010183:Pancreatic Ducts / Q000601:surgery*; D010190:Pancreatic Neoplasms / Q000601:surgery*; D010195:Pancreatitis / Q000209:etiology*