Authors: Maida J Sewitch; Pascal Burtin; Martin Dawes; Mark Yaffe; Linda Snell; Mark Roper; Patrizia Zanelli; Alan Pavilanis Journal: Can J Gastroenterol Date: 2006-11 Impact factor: 3.522
Authors: Ann G Zauber; Theodore R Levin; C Carl Jaffe; Barbara A Galen; David F Ransohoff; Martin L Brown Journal: Med Care Date: 2008-09 Impact factor: 2.983