[1
]
Faculty of Medicine, Aix-Marseille University, Marseille, France; Gastroenterology,
Public Assistance Hospitals of Marseille, Marseille, France.
[2
]
Interventional Endoscopy Services, California Pacific Medical Center, San Francisco,
California, USA.
[3
]
Faculty of Medicine, Aix-Marseille University, Marseille, France; Gastroenterology,
University Hospital of Nice, Nice, France.
[4
]
Division of Gastroenterology and Hepatology, University of North Carolina, Chapel
Hill, North Carolina, USA.