title: Observation of an intraoval precipitin (IOP) reaction in Schistosoma mansoni eggs.
mesh_terms: D000818:Animals; D000941:Antigens / Q000276:immunology*; D005260:Female; D006801:Humans; D010063:Ovum / Q000276:immunology; D011233:Precipitin Tests; D012550:Schistosoma mansoni / Q000276:immunology*; D012552:Schistosomiasis / Q000175:diagnosis* / Q000276:immunology
chemical_list: D000941:Antigens