Authors: S L Kopecky; B J Gersh; M D McGoon; J P Whisnant; D R Holmes; D M Ilstrup; R L Frye Journal: N Engl J Med Date: 1987-09-10 Impact factor: 91.245
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