Fig. 2. Hypothetic immunopathogenesis in polyarteritis nodosa associated with Australia antigen. (Fye KH, Moutsopoulos HM, Talal N: Rheumatoid diseases. In Fudenberg HH, Stites DP, Caldwell JL et al [eds]: Basic and Clinical Immunology, p 380. Los Altos: Lange Medical Publications, 1976.)