Authors: M H Frick; O Elo; K Haapa; O P Heinonen; P Heinsalmi; P Helo; J K Huttunen; P Kaitaniemi; P Koskinen; V Manninen Journal: N Engl J Med Date: 1987-11-12 Impact factor: 91.245
Authors: W P Newman; D S Freedman; A W Voors; P D Gard; S R Srinivasan; J L Cresanta; G D Williamson; L S Webber; G S Berenson Journal: N Engl J Med Date: 1986-01-16 Impact factor: 91.245