Authors: G M McQuillan; P J Coleman; D Kruszon-Moran; L A Moyer; S B Lambert; H S Margolis Journal: Am J Public Health Date: 1999-01 Impact factor: 9.308
Authors: Emmet B Keeffe; Douglas T Dieterich; Steven-Huy B Han; Ira M Jacobson; Paul Martin; Eugene R Schiff; Hillel Tobias Journal: Clin Gastroenterol Hepatol Date: 2008-08-23 Impact factor: 11.382