Authors: W W I Kalk; A Vissink; B Stegenga; H Bootsma; A V Nieuw Amerongen; C G M Kallenberg Journal: Ann Rheum Dis Date: 2002-02 Impact factor: 19.103
Authors: W W Kalk; A Vissink; F K Spijkervet; H Bootsma; C G Kallenberg; A V Nieuw Amerongen Journal: Ann Rheum Dis Date: 2001-12 Impact factor: 19.103