title: An absorption method for preparing anti-M-typing streptococcal sera using acid-hydrolyzed cells.
mesh_terms: D000042:Absorption; D003429:Cross Reactions; D006863:Hydrogen-Ion Concentration; D006868:Hydrolysis; D007106:Immune Sera; D005779:Immunodiffusion; D007075:Immunoglobulin M; D008722:Methods; D013291:Streptococcus / Q000276:immunology*
chemical_list: D007106:Immune Sera; D007075:Immunoglobulin M