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 Radetsky; G R Istre; T L Johansen; S W Parmelee; B A Lauer; A M Wiesenthal; M P Glode Journal: Lancet Date: 1981-10-10 Impact factor: 79.321