Authors: D H Present; P Rutgeerts; S Targan; S B Hanauer; L Mayer; R A van Hogezand; D K Podolsky; B E Sands; T Braakman; K L DeWoody; T F Schaible; S J van Deventer Journal: N Engl J Med Date: 1999-05-06 Impact factor: 91.245
Authors: R G Beets-Tan; G L Beets; A G van der Hoop; A G Kessels; R F Vliegen; C G Baeten; J M van Engelshoven Journal: Radiology Date: 2001-01 Impact factor: 11.105
Authors: D A Schwartz; M J Wiersema; K M Dudiak; J G Fletcher; J E Clain; W J Tremaine; A R Zinsmeister; I D Norton; L A Boardman; R M Devine; B G Wolff; T M Young-Fadok; N N Diehl; J H Pemberton; W J Sandborn Journal: Gastroenterology Date: 2001-11 Impact factor: 22.682