title: C'-1 fixation by human isoagglutinins: fixation of C'-1 by gamma-G and gamma-M but not by gamma-A antibody.
mesh_terms: D002850:Chromatography, Gel; D003168:Complement Fixation Tests; D006801:Humans; D007518:Isoantibodies; D014461:Ultracentrifugation; D005719:gamma-Globulins
chemical_list: D007518:Isoantibodies; D005719:gamma-Globulins