Papachristou Georgios I, Schoedel Karen E, Ramanathan Ramesh, Rabinovitz Mordechai
Department of Medicine, Division of Gastroenterology and Hepatology, University of Pittsburgh, School of Medicine, Pittsburgh, Pennsylvania 15213, USA.
Dig Dis Sci. 2005 Nov;50(11):2159-62. doi: 10.1007/s10620-005-3024-8.