Authors: R D Safian; A D Berman; D J Diver; L L McKay; P C Come; M F Riley; S E Warren; M J Cunningham; R M Wyman; J S Weinstein Journal: N Engl J Med Date: 1988-07-21 Impact factor: 91.245
Authors: H C Herrmann; G T Wilkins; V M Abascal; A E Weyman; P C Block; I F Palacios Journal: J Thorac Cardiovasc Surg Date: 1988-07 Impact factor: 5.209