title: Graded hemagglutination inhibition--a new technique applied to the quantitation of human immunoglobulins IgG and IgA.
mesh_terms: D006385:Hemagglutination Inhibition Tests / Q000379:methods; D006801:Humans; D005779:Immunodiffusion / Q000379:methods; D007070:Immunoglobulin A / Q000032:analysis*; D007074:Immunoglobulin G / Q000032:analysis*
chemical_list: D007070:Immunoglobulin A; D007074:Immunoglobulin G