Authors: M G Rittig; A Krause; T Häupl; U E Schaible; M Modolell; M D Kramer; E Lütjen-Drecoll; M M Simon; G R Burmester Journal: Infect Immun Date: 1992-10 Impact factor: 3.441
Authors: S Pontremoli; E Melloni; M Michetti; B Sparatore; F Salamino; O Sacco; B L Horecker Journal: Proc Natl Acad Sci U S A Date: 1987-01 Impact factor: 11.205