title: The G4 subclass in IgG fractions prepared by ion-exchange chromatography.
mesh_terms: D000042:Absorption; D002848:Chromatography, DEAE-Cellulose; D002852:Chromatography, Ion Exchange; D006801:Humans; D007106:Immune Sera / Q000032:analysis; D007120:Immunochemistry; D005779:Immunodiffusion; D007122:Immunoelectrophoresis; D007074:Immunoglobulin G / Q000032:analysis*; D008722:Methods
chemical_list: D007106:Immune Sera; D007074:Immunoglobulin G