Authors: W M Byrd; L A Clayton; K Kinchen; D Richardson; L Lawrence; R Butcher; E Davidson Journal: J Natl Med Assoc Date: 1994-03 Impact factor: 1.798
Authors: R B Burns; E P McCarthy; K M Freund; S L Marwill; M Shwartz; A Ash; M A Moskowitz Journal: Ann Intern Med Date: 1996-08-01 Impact factor: 25.391