Authors: G L Wolf; M M Mishkin; S G Roux; E F Halpern; J Gottlieb; J Zimmerman; J Gillen; C Thellman Journal: Invest Radiol Date: 1991-05 Impact factor: 6.016
Authors: E C Lasser; C C Berry; L B Talner; L C Santini; E K Lang; F H Gerber; H O Stolberg Journal: N Engl J Med Date: 1987-10-01 Impact factor: 91.245