Authors: J C Jennette; R J Falk; K Andrassy; P A Bacon; J Churg; W L Gross; E C Hagen; G S Hoffman; G G Hunder; C G Kallenberg Journal: Arthritis Rheum Date: 1994-02
Authors: A T Masi; G G Hunder; J T Lie; B A Michel; D A Bloch; W P Arend; L H Calabrese; S M Edworthy; A S Fauci; R Y Leavitt Journal: Arthritis Rheum Date: 1990-08