title: Endoscopic ultrasound fine-needle aspiration vs. fine-needle biopsy: tissue is always the issue.
authors.affiliation: Gastroenterology Department, Centro Hospitalar São João, Porto, Portugal; Division of Gastroenterology and Hepatology, University of North Carolina, Chapel Hill, North Carolina, USA.
authors.forename: Eduardo
authors.initials: E
authors.lastname: Rodrigues-Pinto
authors.affiliation: Division of Gastroenterology and Hepatology, University of North Carolina, Chapel Hill, North Carolina, USA.
authors.forename: Ian S
authors.initials: IS
authors.lastname: Grimm
authors.affiliation: Division of Gastroenterology and Hepatology, University of North Carolina, Chapel Hill, North Carolina, USA.
authors.forename: Todd H
authors.initials: TH
authors.lastname: Baron