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The complex involved in recognition of self vs non-self is:

Macrophages are characterized by:

A consistently and repeatedly negative IFA-ANA is:

IgM antibodies are frequently hemolytic because of:

Cold agglutinins are often found in the serum of a patient with

The FTA-ABS test for the serological diagnosis of syphilis is:

The serological test that can be modified to selectively detect only specific IgM antibody in untreated serum is:

Cells that are precursors of plasma cells that produce immunoglobulins are:

Initiation of the activation mechanism of the alternative complement pathway differs from that of the classic pathway in that:

Patients suffering from Waldenstrom macroglobulinemia demonstrate excessively increased concentrations of which of the following?