Authors: Donna L Washington; Carl D Stevens; Paul G Shekelle; Philip L Henneman; Robert H Brook Journal: Ann Intern Med Date: 2002-11-05 Impact factor: 25.391
Authors: M J Fine; T E Auble; D M Yealy; B H Hanusa; L A Weissfeld; D E Singer; C M Coley; T J Marrie; W N Kapoor Journal: N Engl J Med Date: 1997-01-23 Impact factor: 91.245