Authors: M Boers; A C Verhoeven; H M Markusse; M A van de Laar; R Westhovens; J C van Denderen; D van Zeben; B A Dijkmans; A J Peeters; P Jacobs; H R van den Brink; H J Schouten; D M van der Heijde; A Boonen; S van der Linden Journal: Lancet Date: 1997-08-02 Impact factor: 79.321
Authors: K G Saag; R Koehnke; J R Caldwell; R Brasington; L F Burmeister; B Zimmerman; J A Kohler; D E Furst Journal: Am J Med Date: 1994-02 Impact factor: 4.965
Authors: P Tugwell; T Pincus; D Yocum; M Stein; O Gluck; G Kraag; R McKendry; J Tesser; P Baker; G Wells Journal: N Engl J Med Date: 1995-07-20 Impact factor: 91.245