Endoscopic ultrasound-guided liver biopsy: a multicenter experience oleh David L. Diehl, Amitpal S. Johal, Harshit S. Khara, Stavros N. Stavropoulos, Mohammed Al-Haddad, Jayapal Ramesh, Shyam Varadarajulu, Harry Aslanian, Stuart R. Gordon, Frederick K. Shieh, Jonh J. Pineda-Bonilla, Theresa Dunkelberger, Dibson D. Gondim, Eric Z. Chen