title: Estimation of allelic immobilization antigens in syngen 9 of Paramecium aurelia. I. Micro-technique with complement fixation in conjunction with other methods.
mesh_terms: D000483:Alleles; D000818:Animals; D000941:Antigens / Q000032:analysis*; D003168:Complement Fixation Tests / Q000379:methods*; D005779:Immunodiffusion; D010247:Paramecium / Q000276:immunology*; D011506:Proteins / Q000032:analysis
chemical_list: D000941:Antigens; D011506:Proteins