Emily J Campbell1, James M Richter2. 1. Division of Gastroenterology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA. 2. Division of Gastroenterology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA. jrichter@mgh.harvard.edu.
Authors: Aasma Shaukat; Cristina Oancea; John H Bond; Timothy R Church; John I Allen Journal: Clin Gastroenterol Hepatol Date: 2009-08-07 Impact factor: 11.382
Authors: Sarah Hudson Scholle; Joachim Roski; John L Adams; Daniel L Dunn; Eve A Kerr; Donna Pillittere Dugan; Roxanne E Jensen Journal: Am J Manag Care Date: 2008-12 Impact factor: 2.229