Authors: Elizabeth A McGlynn; Steven M Asch; John Adams; Joan Keesey; Jennifer Hicks; Alison DeCristofaro; Eve A Kerr Journal: N Engl J Med Date: 2003-06-26 Impact factor: 91.245
Authors: Andrew L Rosenberg; Timothy P Hofer; Cathy Strachan; Charles M Watts; Rodney A Hayward Journal: Ann Intern Med Date: 2003-06-03 Impact factor: 25.391