title: A cell-free haemagglutinating antigen of Mycoplasma synoviae and its use in haemagglutination inhibition tests.
mesh_terms: D000942:Antigens, Bacterial / Q000302:isolation & purification*; D006384:Hemagglutination; D006385:Hemagglutination Inhibition Tests; D009174:Mycoplasma / Q000276:immunology*
chemical_list: D000942:Antigens, Bacterial