Authors: R S Schwartz; C F Abildgaard; L M Aledort; S Arkin; A L Bloom; H H Brackmann; D B Brettler; H Fukui; M W Hilgartner; M J Inwood Journal: N Engl J Med Date: 1990-12-27 Impact factor: 91.245
Authors: S Ehrenforth; W Kreuz; I Scharrer; R Linde; M Funk; T Güngör; B Krackhardt; B Kornhuber Journal: Lancet Date: 1992-03-07 Impact factor: 79.321