Authors: M R Jacobs; H J Koornhof; R M Robins-Browne; C M Stevenson; Z A Vermaak; I Freiman; G B Miller; M A Witcomb; M Isaäcson; J I Ward; R Austrian Journal: N Engl J Med Date: 1978-10-05 Impact factor: 91.245
Authors: M S Simberkoff; A P Cross; M Al-Ibrahim; A L Baltch; P J Geiseler; J Nadler; A S Richmond; R P Smith; G Schiffman; D S Shepard Journal: N Engl J Med Date: 1986-11-20 Impact factor: 91.245