title: Studies on the complement fixation test with Mycoplasma pneumoniae antigen. 6. Preparation of cell antigens with low contents of medium constituents.
mesh_terms: D000941:Antigens / Q000302:isolation & purification*; D002498:Centrifugation; D003168:Complement Fixation Tests; D005779:Immunodiffusion; D008722:Methods; D009174:Mycoplasma / Q000276:immunology*
chemical_list: D000941:Antigens