title: The preparation of amoebic extracts and their testing by complement fixation against clinically proved sera.
mesh_terms: D000562:Amebiasis / Q000175:diagnosis*; D000656:Amoeba / Q000276:immunology*; D000818:Animals; D000941:Antigens; D001798:Blood Proteins; D002353:Carrier State / Q000175:diagnosis; D003168:Complement Fixation Tests; D003470:Culture Media; D004404:Dysentery, Amebic / Q000175:diagnosis; D004748:Entamoeba histolytica / Q000276:immunology; D005455:Fluorescent Antibody Technique; D006386:Hemagglutination Tests; D006801:Humans; D008101:Liver Abscess, Amebic / Q000175:diagnosis*; D011817:Rabbits / Q000276:immunology; D014414:Tungsten
chemical_list: D000941:Antigens; D001798:Blood Proteins; D003470:Culture Media; D014414:Tungsten