The complement-fixing activity of immune complexes containing IgG antibodies of different affinity: differences in the classic and alternative pathways activation using homologous and heterologous systems - Alves, C M O S; Marzocchi-Machado, Cleni Mara; Azzolini, Ana Elisa Caleiro Seixas; Lucisano-Valim, Yara Maria (Reunião Anual da Sociedade Brasileira de Bioquímica e Biologia Molecular, 1999)