Authors: R S Gibson; D D Watson; G B Craddock; R S Crampton; D L Kaiser; M J Denny; G A Beller Journal: Circulation Date: 1983-08 Impact factor: 29.690
Authors: G Sanz; A Castañer; A Betriu; J Magriña; E Roig; S Coll; J C Paré; F Navarro-López Journal: N Engl J Med Date: 1982-05-06 Impact factor: 91.245