Authors: J N Cohn; J A Franciosa; G S Francis; D Archibald; F Tristani; R Fletcher; A Montero; G Cintron; J Clarke; D Hager; R Saunders; F Cobb; R Smith; H Loeb; H Settle Journal: N Engl J Med Date: 1982-05-13 Impact factor: 91.245
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