title: Letter: Mixed receptors.
mesh_terms: D000818:Animals; D001402:B-Lymphocytes / Q000276:immunology*; D001666:Binding Sites, Antibody; D001772:Blood Cell Count; D004912:Erythrocytes / Q000276:immunology; D006801:Humans; D007104:Immune Adherence Reaction; D007074:Immunoglobulin G / Q000302:isolation & purification; D007945:Leukemia, Lymphoid / Q000097:blood / Q000276:immunology*; D012756:Sheep; D013601:T-Lymphocytes / Q000276:immunology*
chemical_list: D007074:Immunoglobulin G