National Centre for Ultrasound in Gastroenterology, Department of Medicine, Haukeland University Hospital, Bergen, Norway
Correspondence: Odd Helge Gilja, MD, PhD, National Centre for Ultrasound in Gastroenterology, Department of Medicine, Haukeland University Hospital, NO-5021, Bergen, Norway, Tel: +47 5597 2872/5597 5000, Fax: +47 5597 2950, E-mail: [email protected]
