Authors: M R Antani; R J Beyth; K E Covinsky; P A Anderson; D G Miller; R D Cebul; L M Quinn; C S Landefeld Journal: J Gen Intern Med Date: 1996-12 Impact factor: 5.128
Authors: M D Ezekowitz; S L Bridgers; K E James; N H Carliner; C L Colling; C C Gornick; H Krause-Steinrauf; J F Kurtzke; S M Nazarian; M J Radford Journal: N Engl J Med Date: 1992-11-12 Impact factor: 91.245