Authors: N P Roos; J E Wennberg; D J Malenka; E S Fisher; K McPherson; T F Andersen; M M Cohen; E Ramsey Journal: N Engl J Med Date: 1989-04-27 Impact factor: 91.245
Authors: G J Gormley; E Stoner; R C Bruskewitz; J Imperato-McGinley; P C Walsh; J D McConnell; G L Andriole; J Geller; B R Bracken; J S Tenover Journal: N Engl J Med Date: 1992-10-22 Impact factor: 91.245