Authors: J E Gerich; M Lorenzi; D M Bier; V Schneider; E Tsalikian; J H Karam; P H Forsham Journal: N Engl J Med Date: 1975-05-08 Impact factor: 91.245
Authors: L I Larsson; M A Hirsch; J J Holst; S Ingemansson; C Kühl; S L Jensen; G Lundqvist; J F Rehfeld; T W Schwartz Journal: Lancet Date: 1977-03-26 Impact factor: 79.321