CR1 on erythrocytes of Brazilian systemic lupus erythematosus patients: the influence of disease activity on expression and ability of this receptor to bind immune complexes opsonized with complement from normal human serum - Marzocchi-Machado, Cleni Mara; Alves, Celene Maria Oliveira Simões; Azzolini, Ana Elisa Caleiro Seixas; Polizello, Ana Cristina Morseli; Carvalho, Ivan Fiore de; Lucisano-Valim, Yara Maria (Journal of Autoimmunity, 2005)